Animal migrations are extensive and crucial for ecosystem health but are in decline. This study identifies 1,787 sites and links among them for 109 marine species, highlighting the need for international cooperation and providing policymakers with essential knowledge for effective conservation.

A critically low abundance of older herring due to age-selective fisheries resulted in an approximately 800-km poleward shift in main spawning.

Understanding species’ spatiotemporal dynamics is key to predicting their responses to climate change. Here, the authors combine landscape genomics, demographic reconstructions, and species distribution models to assess lineage-specific responses to past and future climate in a migratory raptor.

In war and conflict zones, the jamming of Global Navigation Satellite System (GNNS) signals by military forces disrupts the tracking of tagged animals, and has increased in frequency following the recent escalation of conflicts in Eastern Europe and the Middle East. Such disruption to data collection strongly hampers research into the protection and conservation of endangered animals.

The energetic needs of females increase markedly around the birth of offspring. Large herbivore females thus track food resources, the availability of which varies in time and space. A multispecies dataset of GPS locations revealed that female movement to reach food is hampered by the adaptive antipredator behaviour of their offspring.

As climate change redirects migration patterns of marine species towards the extremes of their geographic range, sharks find themselves stunned by rising cold upwelling currents.

Amidst the Arctic sea-ice decline and the consequent increasing under-ice light transmittance, Arctic zooplankton face challenging times. The collection of a unique dataset in the central Arctic Ocean unravels the patterns of their vertical migration, signalling potential disruptions to the Arctic ecosystem.