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Head of a goblin shark
Head of a goblin shark

Thegoblin shark is a rare species of deep-seashark. Sometimes called a "living fossil", it is the only extant representative of thefamilyMitsukurinidae, a lineage 125 million years old. This species looks unlike any other shark, with a long, flattened snout, highly protrusible jaws containing prominent nail-like teeth and pink coloration. Its snout is covered withampullae of Lorenzini that enable it to sense minuteelectric fields produced by nearby prey, which it can snatch up by rapidly extending its jaws. It is usually three to four metres long (10 to 13 ft) when mature. Goblin sharks inhabit uppercontinental slopes,submarine canyons andseamounts deeper than 100 metres (330 ft). Anatomical features, such as its flabby body and small fins, suggest that it is sluggish in nature. It hunts forteleost fishes,cephalopods andcrustaceans both near the sea floor and in the middle of thewater column. TheInternational Union for Conservation of Nature has assessed it asLeast Concern. (Full article...)

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Mandan Bull Dancer
Mandan Bull Dancer

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Flooding near Hunt, Texas
Flooding nearHunt, Texas

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July 9

Millard Fillmore
Millard Fillmore

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Tamarind

Thetamarind (Tamarindus indica) is aleguminous tree in the familyFabaceae, indigenous totropical Africa and naturalized in Asia. The tamarind tree produces brown, pod-like edible fruits, 12 to 15 centimetres (4.5 to 6 inches) in length, which contain a sweet, tangy pulp. The pulp is also used intraditional medicine and as ametal polish. This photograph shows two tamarind fruits of the cultivar 'Si Thong', one whole and one opened, with three tamarind seeds in front. The picture wasfocus-stacked from 51 separate images.

Photograph credit:Ivar Leidus

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