Songs have lowered in frequency, in part because of changes to ocean water. Whales in the ocean around Antarctica are changing their tune, according to a new study. Publishing their findings in the ...

Its appetite hinges on nutrient-rich krill swarms, so climate shifts that shrink krill threaten energy reserves and migration. Read on to discover the 12-inch-thick throat muscles and a 90-second gulp ...

The ocean is going silent. Blue whales, the gentle leviathans that swim in all but one of the world’s oceans, are the singers of the underwater world. Their groans, whistles and clicks are famously so ...

An illustration of the (A) pre-whaling and (B) post-whaling interactions between whales, shrimp-like krill (pink), and photosynthesizing organisms known as phytoplankton (top left of each panel) in ...

If you liked this story, share it with other people. Nearly all of Antarctica’s iconic wildlife, from penguins to seals and whales, depend on krill, tiny crustaceans that make up the base of the food ...