Key characteristics of cetaceans are their fully aquaticlife cycle,streamlined, fish-like body shape, the need toperiodically surface and breath air, and exclusivelycarnivorous diet. Allextant cetaceans are capable ofecholocation.

Asnektonic animals, cetaceanspropel themselves through the water with powerful up-and-down movements of their tails, which have evolved into in a horizontal paddle-likefluke. Theirhindlimbs have disappeared with only somevestigial skeleton of thepelvis andfemurs, and theirforelimbs haveevolved intoflippers which they use topaddle and steer. Some fast-swimming groups, most notably the smaller dolphins and porpoises, have adorsal fin to facilitatedirectional stability. Cetaceans also havelarge brains and havehigh intelligence, complex social behaviour, andsong-like communication. Some cetaceans have large bodies, such as theblue whale, which reaches a maximum confirmed length of 29.9 meters (98 feet) and a weight of 173tonnes (190 short tons), making it the largest animal known to have existed.

There are approximately 90 living cetaceanspecies split into twoparvorders:Odontoceti or toothed whales, which contains 75 species including porpoises, dolphins, thebeaked whales and otherpredatory whales like thebeluga andsperm whale, who prey uponfish,cephalopods and other marine mammals such aspinnipeds; andMysticeti or baleen whales, which contains 15 species of large whales including the blue whale,humpback whale andbowhead whale among others, who are mostlyfilter-feeding planktivores (or sometimesbottom-feeding crustacivores ormolluscivores, as in the case of thegray whale) using oralbristle plates known asbaleen to sieve out and feed on large swarms of smallinvertebrates, usuallycrustaceans such askrill. Despite their highly modified bodies and carnivorous lifestyle, genetic and fossil evidence places cetaceans within theterrestrial even-toed ungulates, most closely related to thehippopotamids. (Full article...)

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"Whale Whores" is the eleventh episode of thethirteenth season of the American animated television seriesSouth Park. The 192nd overall episode of the series, it aired onComedy Central in the United States on October 28, 2009. In the episode,Stan joins an anti-whaling crew in order to save dolphins and whales fromJapanese whalers.

The episode was written and directed by series co-creatorTrey Parker, and was ratedTV-MA LV in the United States. "Whale Whores" addressed the topic of Japanese whaling, condemning the whalers . The episode is particularly critical of the reality television seriesWhale Wars and its starPaul Watson, an environmental activist who is prominently featured in "Whale Whores". (Full article...)
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Reconstructed skeleton at theNatural History Museum of the University of Pisa

Ambulocetus (fromLatinambulō, meaning "to walk", andcetus, meaning "whale", and thus, "walking whale") is agenus of earlyamphibious cetacean from theKuldana Formation inPakistan, roughly 48 or 47 million years ago during theEarly Eocene (Lutetian). It contains onespecies,Ambulocetus natans (Latinnatans "swimming"), known solely from one near-complete skeleton.Ambulocetus is among the best-studied of Eocene cetaceans, and serves as an instrumental find in the study ofcetacean evolution and their transition from land to sea, as it was the first cetacean discovered to preserve a suite of adaptations consistent with an amphibious lifestyle.Ambulocetus is classified in the groupArchaeoceti—the ancient forerunners of modern cetaceans whose members span the transition from land to sea—and in thefamily Ambulocetidae, which includesHimalayacetus andGandakasia (also from the Eocene of theIndian subcontinent).

Ambulocetus had a narrow, streamlined body, and a long, broad snout, with eyes positioned at the very top of its head. Because of these features, it is hypothesised to have behaved much like a crocodile, waiting near the water's surface to ambush large mammals, using its powerful jaws to clamp onto and drown or thrash prey. Additionally, its ears possessed similar traits to modern cetaceans, which are specialised for hearing and detecting certain frequencies underwater, although it is unclear ifAmbulocetus also used these specialised ears for hearing underwater. They may have instead been utilised forbone conduction on land, or perhaps served no function for early cetaceans. (Full article...)
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Cryptolepas rhachianecti

Whale barnacles arespecies ofacorn barnacle that belong to thefamilyCoronulidae. They typically attach tobaleen whales, and sometimes settle ontoothed whales. The whale barnacles diverged from theturtle barnacles about threemillion years ago.

Whale barnacles passively filter food, using tentacle-likecirri, as thehost swims through the water. The arrangement is generally consideredcommensal as it is done at no cost or benefit to the host. However, some whales may make use of the barnacles as protective armor or for inflicting more damage while fighting, which would make the relationshipmutualistic where both parties benefit; alternatively, some species may just increase thedrag that the host experiences while swimming, making the barnaclesparasites. (Full article...)
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Skull ofJanjucetus hunderi at theMelbourne Museum

Janjucetus is anextinct genus ofbaleen whale that lived during theLate Oligocene (Chattian) in south-east Australia, around 25 million years ago. Remains of the genus have been found in the Jan Juc Marl in theJan Juc Formation near the township of the same name, and have been assigned to two species: the type speciesJ. hunderi andJ. dullardi. This locality has yielded remains of more extinctcetaceans, includingProsqualodon,Waipatia, and the relatedMammalodon.

Unlike modern mysticetes, it possessed large teeth for gripping and shredding prey instead ofbaleen, and was therefore likely to have been a predator that captured individual large prey animals rather thanfilter feeding. However, it has been noted that the teeth ofJunjucetus may have interlocked like those of the modern-day filter-feedingcrabeater seal (Lobodon carcinophaga), which would have given it a limited filter-feeding capacity. At the same time the closest relative to the crabeater seal is theleopard seal (Hydrurga leptonyx), known to have had somewhat similar dentition, although its ecology mostly involves hunting larger prey, leading to the idea thatJanjucetus may have fed on large fish. The animal possessed unusually large eyes, suggesting that an acute sense of vision may have aided it in hunting. (Full article...)
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Clockwise from top left:humpback whale,gray whale,North Atlantic right whale, andcommon minke whale

Baleen whales (/bəˈliːn/), also known aswhalebone whales, aremarine mammals of theparvorderMysticeti in the infraorderCetacea (whales,dolphins andporpoises), which usebaleen plates (or "whalebone") in their mouths to sieveplankton from the water. Mysticeti comprises thefamilies Balaenidae (right andbowhead whales),Balaenopteridae (rorquals),Eschrichtiidae (thegray whale) andCetotheriidae (thepygmy right whale). There are 16species of baleen whales. While cetaceans were historically thought to have descended frommesonychians,molecular evidence instead supports them as aclade ofeven-toed ungulates (Artiodactyla). Baleen whales split fromtoothed whales (Odontoceti) around 34million years ago.

Baleen whales range in size from the 6 m (20 ft) and 3,000 kg (6,600 lb)pygmy right whale to the 31 m (102 ft) and 190 t (210 short tons)blue whale, thelargest known animal to have ever existed. They aresexually dimorphic. Baleen whales can have streamlined or large bodies, depending on the feeding behavior, and two limbs that are modified intoflippers. Thefin whale is the fastest baleen whale, recorded swimming at 10 m/s (36 km/h; 22 mph). Baleen whales use theirbaleen plates to filter out food from the water by eitherlunge-feeding or skim-feeding. Baleen whales have fusedneck vertebrae, and are unable to turn their heads at all. Baleen whales have twoblowholes. Some species are well adapted for diving to great depths. They have a layer of fat, orblubber, under the skin to keep warm in the cold water. (Full article...)
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Theharbor porpoise (Phocoena phocoena)

Porpoises (/ˈpɔːrpəsɪz/) are smalldolphin-likecetaceans classified under the familyPhocoenidae. Although similar in appearance todolphins, they are more closely related tonarwhals andbelugas. There are eight extant species of porpoise, all among the smallest of thetoothed whales. Porpoises are distinguished from dolphins by their flattened, spade-shaped teeth distinct from the conical teeth of dolphins, and lack of a pronounced beak, although some dolphins (e.g.Hector's dolphin) also lack a pronounced beak. Porpoises, and othercetaceans, belong to theclade Cetartiodactyla witheven-toed ungulates.

Porpoises range in size from thevaquita, at 1.4 metres (4 feet 7 inches) in length and 54 kilograms (119 pounds) in weight, to theDall's porpoise, at 2.3 m (7 ft 7 in) and 220 kg (490 lb). Several species exhibitsexual dimorphism in that the females are larger than males. They have streamlined bodies and two limbs that are modified into flippers. Porpoises useecholocation as their primarysensory system. Some species are well adapted for diving to great depths. As all cetaceans, they have a layer of fat, or blubber, under the skin to keep them warm in cold water. (Full article...)
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Thedusky dolphin (Aethalodelphis obscurus) is a smalloceanic dolphin found in coastal waters of theSouthern Hemisphere. It is most closely related to thePacific white-sided dolphin. The dolphin's range is patchy, major populations occurring around South America, southwestern Africa, New Zealand, and several oceanic islands, with some sightings around southern Australia. It has a somewhat stocky body with a shortbeak and a curveddorsal fin and flippers. Like its closest relative, the dusky dolphin has a multi-coloured pigmentation of black, grey, and white.

The species prefers cool currents and inshore waters. It lives in afission–fusion society where groups change size based on social and environmental conditions. The dolphin feeds on severalfish andsquid species and has flexible hunting tactics, includingdaytime bait ball herding andnightime feeding indeep scattering layers. Mating ispolygynandrous, and several males will chase after a single female, the fittest being able to catch her and reproduce. Females raise their young innursery groups. The dusky dolphin is known for its acrobatics, displayingleaping behaviours which vary in complexity and may or may not create splashes. (Full article...)
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A fin whale surfacing in waters around Greenland

The fin whale (Balaenoptera physalus), also known as the finback whale or common rorqual, is a species of baleen whale and the second-longestcetacean after the blue whale. The biggest individual reportedly measured 26–27 m (85–89 ft) in length, with a maximum recorded weight of 65.5 to 120tonnes (72.2 to 132.3short tons; 64.5 to 118.1long tons). The fin whale's body is long, slender and brownish-gray in color, with a paler underside to appear less conspicuous from below (countershading).

At least two recognized subspecies exist, one in theNorth Atlantic and one across theSouthern Hemisphere. It is found in all the major oceans, from polar to tropical waters, though it is absent only from waters close to the pack ice at the poles and relatively small areas of water away from the open ocean. The highest population density occurs in temperate and cool waters. Its prey mainly consists of smallerschooling fish, small squid, or crustaceans, includingcopepods and krill. Mating takes place in temperate, low-latitude seas during the winter. Fin whales are often observed in pods of 6–10 animals, with whom they communicate utilizing frequency-modulated sounds, ranging from 16 to 40 hertz. (Full article...)
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Rice's whale surfacing in theGulf of Mexico

Rice's whale (Balaenoptera ricei), also known as theGulf of Mexico whale, is aspecies ofbaleen whale endemic to the northernGulf of Mexico. Initially identified as asubpopulation of theBryde's whale,genetic and skeletal studies found it to be a distinct species by 2021. In outward appearance, it is virtually identical to the Bryde's whale. Its body is streamlined and sleek, with a uniformlydark charcoal gray dorsal and pale to pinkish underside. A diagnostic feature often used byfield scientists to distinguish Rice's whales from whales other than the Bryde's whale is the three prominent ridges that line the top of its head. The species can be distinguished from the Bryde's whale by the shape of thenasal bones, which have wider gaps due to a unique wrapping by thefrontal bones, its unique vocal repertoire, and genetic differences.

It is a medium-sized baleen whale that grows up to 12.65 meters (41.5 ft) in length and weighs up to 13.87–27.2 metric tons (13.65–26.77 long tons; 15.29–29.98 short tons). The Rice's whale inhabits a restricted stretch along thecontinental slope in the northeastern part of the Gulf of Mexico between depths of 150–410 meters (490–1,350 ft) off the coast of westernFlorida, although some whales have been sighted in the northwestern portions and the species may have inhabited a widerdistribution throughout the Gulf in historical times. It does not migrate but remains within this area year-round. Little is known about the feeding behavior of Rice's whales, but data from a tagged individual revealed adiel vertical diving pattern, in which the whale spends most of the day feeding at or near the seafloor at depths of up to 271 meters (889 ft) and night at the surface. The whale's diet remains unknown, butlanternfish andhatchetfish are suspected prey. (Full article...)
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Sei whale mother and calf

Thesei whale (/seɪ/SAY,Norwegian:[sæɪ];Balaenoptera borealis) is abaleen whale. It is one of tenrorqual species, and the third-largest member after theblue andfin whales. It can grow to 19.5 m (64 ft) in length and weigh as much as 28 t (28 long tons; 31 short tons). Two subspecies are recognized:B. b. borealis andB. b. schlegelii. The whale'sventral surface has sporadic markings ranging from light grey to white, and its body is usually dark steel grey in colour. It is among the fastest of all cetaceans, and can reach speeds of up to 50–55 km/h (31–34 mph) over short distances.

It inhabits most oceans and adjoining seas, and prefers deep offshore waters. It avoidspolar and tropical waters and semi-enclosed bodies of water. The sei whale migrates annually from cool, subpolar waters in summer totemperate, subtropical waters in winter with a lifespan of 70 years. It is afilter feeder, with its diet consisting primarily of copepods, krill, and otherzooplankton. It is typically solitary or can be found in groups numbering half a dozen. During the breeding period, a mating pair will remain together. Sei whale vocalizations usually last approximately half a second, and occurs at 240–625 hertz. (Full article...)
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Holotype skull ofA. deinodon

Acrophyseter is agenus ofextinct sperm whale that lived in theLate Miocene off the coast of what is now Peru. The genus comprises two species:A. deinodon andA. robustus. It is part of a group ofmacroraptorial sperm whales that all share several features for hunting large prey, such as deeply rooted and thick teeth.Acrophyseter measured 4–4.5 metres (13–15 ft) in length, making it the smallest macroraptorial sperm whale currently known. Because of its short pointed snout and strongly curved front teeth, it probably fed on the marine vertebrates of its time, such as seals and other whales. (Full article...)
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Southern right whale

Whales are a widely distributed and diverse group of fullyaquatic placental marine mammals. As an informal andcolloquial grouping, they correspond to large members of the infraorderCetacea, i.e. all cetaceans apart fromdolphins andporpoises. Dolphins and porpoises may be considered whales from a formal,cladistic perspective. Whales, dolphins and porpoises belong to the orderCetartiodactyla, which consists of even-toed ungulates. Their closest non-cetacean living relatives are thehippopotamuses, from which they and other cetaceans diverged about 54 million years ago. The twoparvorders of whales,baleen whales (Mysticeti) andtoothed whales (Odontoceti), are thought to have had theirlast common ancestor around 34 million years ago. Mysticetes include fourextant (living)families:Balaenopteridae (the rorquals),Balaenidae (right whales),Cetotheriidae (the pygmy right whale), andEschrichtiidae (the grey whale). Odontocetes include theMonodontidae (belugas and narwhals),Physeteridae (thesperm whale),Kogiidae (the dwarf and pygmy sperm whale), andZiphiidae (the beaked whales), as well as the six families of dolphins and porpoises which are not considered whales in the informal sense.

Whales are fully aquatic, open-ocean animals: they can feed, mate, give birth, suckle and raise their young at sea. Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb)dwarf sperm whale to the 29.9 metres (98 ft) and 190 tonnes (210 short tons)blue whale, which is the largest known animal that has ever lived. Thesperm whale is the largest toothed predator on Earth. Several whale species exhibitsexual dimorphism, in that the females are larger than males. (Full article...)
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Theholotype and only specimen

Orcinus meyeri is anextinct species ofOrcinus (killer whales) found inEarly Miocene deposits of southernGermany, known from two jaw fragments and 18 isolated teeth. It was originally described asDelphinus acutidens in 1859, but it was reclassified in 1873. Its validity is disputed, and it may besynonymous with the ancient sperm whalePhyseterula dubusi. It was found in the Alpine town ofStockach in theMolasse basin, which was acoastal area with strong tidal currents. (Full article...)
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Southern right whale breaching

Right whales are threespecies of largebaleen whales of thegenusEubalaena: theNorth Atlantic right whale (E. glacialis), theNorth Pacific right whale (E. japonica) and thesouthern right whale (E. australis). They are classified in the familyBalaenidae with thebowhead whale. Right whales have rotund bodies with archingrostrums, V-shapedblowholes and dark gray or black skin. The most distinguishing feature of a right whale is the rough patches of skin on its head, which appear white due to parasitism bywhale lice. Right whales are typically 13–17 m (43–56 ft) long and weigh up to 100 short tons (91 t; 89 long tons) or more.

All three species aremigratory, moving seasonally to feed or give birth. The warm equatorial waters form a barrier that isolates the northern and southern species from one another although the southern species, at least, has been known to cross theequator. In the Northern Hemisphere, right whales tend to avoid open waters and stay close topeninsulas and bays and oncontinental shelves, as these areas offer greater shelter and an abundance of their preferred foods. In the Southern Hemisphere, right whales feed far offshore in summer, but a large portion of the population occur in near-shore waters in winter. Right whales feed mainly oncopepods but also consumekrill andpteropods. They may forage the surface, underwater or even the ocean bottom. During courtship, males gather into large groups to compete for a single female, suggesting thatsperm competition is an important factor in mating behavior.Gestation tends to last a year, and calves are weaned at eight months old. (Full article...)
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Orca's Song is a 1987 picturebook written byAnne Cameron and illustrated in black and white by Nelle Olsen. Published byHarbour Publishing, the book is an adaptation of aPacific Northwest Indigenous story.Orca's Song is apourquoi story about a black orca who falls in love with an osprey; the two mate to create a baby orca with the black and white patterning found on the whales.

While some reviewers appreciated the art and text of the story, it received criticism from Indigenous authors and scholars who disputed Cameron's claim of sole authorship and copyright for the story. Consequently, reprints of the book began to attribute the storyteller Klopinum for the story's inspiration although Cameron retained sole authorship credit and copyright. The story has also been noted as an early example of alesbian relationship (between Orca and Osprey) in picturebook literature and one of the few such picturebooks published before 2000 to lack a moralising tone. (Full article...)

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TheHarbour Porpoise (Phocoena phocoena) is one of sixspecies ofporpoise. It is one of the smallest ocean mammals in the sea. As its name implies, it stays close to coastal areas or river estuaries and as such is the most familiar porpoise towhale watchers. This porpoise often ventures up rivers and has been seen hundreds of miles from the sea.

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...cetaceans have evolved from land mammals. Evidence of this is seen in the vestigial hip bones, as well in the pentadactyl ("five-fingered") dorsal flippers/fins.
...Herman Melville included anobjective study of the properties of whales inMoby-Dick.
...a maledolphin namedCinderella wasunofficially married to a human woman.
...sound made by whales can be extremely loud, with 163decibels recorded.
...about 2000 whales may bebeached each year.

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Image 1North Atlantic right whale illustration
Image 2Common minke whale illustration
Image 3Gray whale illustration
Image 4Atlantic white-sided dolphin caught in adrive hunt in Hvalba on theFaroe Islands being taken away with a forklift (fromToothed whale)
Image 5Japanese scientific whaling on a pair ofAntarctic minke whales (fromBaleen whale)
Image 6Diagram illustrating sound generation, propagation and reception in a toothed whale. Outgoing sounds are red and incoming ones are green (fromToothed whale)
Image 7Archaeocetes (like thisBasilosaurus) had aheterodont dentition (fromEvolution of cetaceans)
Image 8Spectrogram of dolphin vocalizations. Whistles, whines, and clicks are visible as upside down V's, horizontal striations, and vertical lines, respectively. (fromToothed whale)
Image 9Orca hunting aWeddell seal (fromToothed whale)
Image 10Aphylogenetic tree showing the relationships among cetacean families. (fromEvolution of cetaceans)
Image 11A whale as depicted byConrad Gessner, 1587, in hisHistoriae animalium (fromToothed whale)
Image 12Baleen whales vary considerably in size and shape, depending on their feeding behavior. (fromBaleen whale)
Image 13The nose of the whale is filled with a waxy substance that was widely used in candles, oil lamps, and lubricants (fromToothed whale)
Image 14South Atlantic right whale illustration
Image 15Accessorybaleen plates taper off into small hairs (fromBaleen whale)
Image 16Blue whale illustration
Image 17Sei whale illustration
Image 18The skeleton of abowhead whale with the hind limb and pelvic bone structure circled in red. This bone structure stays internal during the entire life of the species. (fromEvolution of cetaceans)
Image 19Their eyes are relatively small for their size.
Image 20Female right whale with calf
Image 21A humpback whale skeleton. Notice how the jaw is split into two.
Image 22Pakicetus attocki skeleton (fromEvolution of cetaceans)
Image 23The remains of aNorth Atlantic right whale after it collided with a shippropeller
Image 24Orangewhale lice on a right whale
Image 25Restoration ofJanjucetus hunderi (fromBaleen whale)
Image 26Dolphins (aquatic mammals) andichthyosaurs (extinctmarine reptiles) share a number of unique adaptations for fully aquatic lifestyle and are frequently used as extreme examples ofconvergent evolution (fromEvolution of cetaceans)
Image 27Features of asperm whale skeleton (fromToothed whale)
Image 28Pygmy right whale illustration
Image 29Humpback whale illustration
Image 30Bryde's whale (rorqual) (fromBaleen whale)
Image 31A protest against Japan's scientific whaling
Image 32Bowhead whale illustration
Image 33Biosonar by cetaceans (fromToothed whale)
Image 34Pacific white-sided dolphins porpoising (fromToothed whale)
Image 35Eden's whale illustration
Image 36Anatomy of thebottlenose dolphin (fromToothed whale)
Image 37Fin whale illustration
Image 38The heart of a blue whale with a person standing next to it
Image 39Megalodon hunted Miocene baleen whales (fromBaleen whale)
Image 40Species of the infraorder Cetacea (fromEvolution of cetaceans)
Image 41Acrophyseter skull (fromEvolution of cetaceans)
Image 42Antarctic minke whale illustration
Image 43Humpback whales lunge-feeding in the course ofbubble net fishing
Image 44Archaeomysticetes, likeJanjucetus, had teeth.
Image 45Possible relationships between cetaceans and other ungulate groups. (fromEvolution of cetaceans)
Image 46Fossil ofSqualodon (fromToothed whale)
Image 47An orca by the name of Ulises performing at SeaWorld, 2009 (fromToothed whale)
Image 48World population graph ofblue whales

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Cetacean articles

Whale species	Andrews' Beaked Whale•Balaenoptera omurai•Beluga•Blainville's Beaked Whale•Blue Whale•Bottlenose Whale•Bowhead Whale•Bryde's Whale•Cuvier's Beaked Whale•Dwarf Sperm Whale•Fin Whale•Gervais' Beaked Whale•Giant beaked whale•Ginkgo-toothed Beaked Whale•Gray Whale•Gray's Beaked Whale•Hector's Beaked Whale•Hubbs' Beaked Whale•Humpback Whale•Layard's Beaked Whale•Longman's Beaked Whale•Melon-headed Whale•Minke Whale•Narwhal•Perrin's Beaked Whale•Pygmy Beaked Whale•Pygmy Killer Whale•Pygmy Right Whale•Pygmy Sperm Whale•Right Whale•Sei Whale•Shepherd's Beaked Whale•Sowerby's Beaked Whale•Spade Toothed Whale•Sperm Whale•Stejneger's Beaked Whale•True's Beaked Whale
Dolphin species	Atlantic Spotted Dolphin•Atlantic White-sided Dolphin•Australian Snubfin Dolphin•Baiji•Boto•Chilean Dolphin•Clymene Dolphin•Commerson's Dolphin•Common Bottlenose Dolphin•Dusky Dolphin•False Killer Whale•Fraser's Dolphin•Ganges and Indus River Dolphin•Heaviside's Dolphin•Hector's Dolphin•Hourglass Dolphin•Humpback dolphin•Indo-Pacific Bottlenose Dolphin•Irrawaddy Dolphin•Killer Whale•La Plata Dolphin•Long-beaked Common Dolphin•Long-finned pilot whale•Pacific White-sided Dolphin•Pantropical Spotted Dolphin•Peale's Dolphin•Pygmy Killer Whale•Right whale dolphin•Risso's Dolphin•Rough-toothed Dolphin•Short-beaked Common Dolphin•Short-finned pilot whale•Spinner Dolphin•Striped Dolphin•Tucuxi•White-beaked Dolphin
Porpoise species	Burmeister's Porpoise•Dall's Porpoise•Finless Porpoise•Harbour Porpoise•Spectacled Porpoise•Vaquita
Other articles	Aboriginal whaling•Ambergris•Animal echolocation•Archaeoceti•Baleen•Baleen whale•Beached whale•Beaked Whale•Blowhole (biology)•Blubber•Bottlenose dolphin•Callosity•Cephalorhynchus•Cetacea•Cetacean intelligence•Cetology•Cetology of Moby-Dick•Common dolphin•Cumberland Sound Beluga•Dolphin•Dolphinarium•Dolphin drive hunting•Evolution of cetaceans•Exploding whale•Harpoon•History of whaling•Human–animal communication•Institute of Cetacean Research•International Whaling Commission•Lagenorhynchus•Melon (whale)•Mesoplodont Whale•Military dolphin•Moby-Dick•Mocha Dick•Monodontidae•Oceanic dolphin•Orcaella•Pilot Whale•Porpoise•River dolphin•River Thames Whale•Rorquals•Sperm whale family•Sperm whaling•Spermaceti•Stenella•Tay Whale•The Marine Mammal Center•Toothed Whale•U.S. Navy Marine Mammal Program•Whale•Whaling•Whale and Dolphin Conservation Society•Whale surfacing behaviour•Whale oil•Whale louse•Whale song •Whale watching•Wolphin