Researchers say it’s a warning sign we can’t afford to ignore. Scientists sound the alarm after observing concerning shift in ...

A mysterious whale that has puzzled scientists for decades may not be an anomaly, but a clue to what climate change is doing ...

Blue whales are not only the largest animal on earth today but the largest known animal ever to have lived on earth. The ...

A new study shows that the mere presence of poop prompted the crustaceans to launch into evasive maneuvers. New research ...

Once four-legged land animals, whales evolved from ancestors Pakicetus, which lived along ancient Pakistani shores ...

They are sometimes curious, but most times do not like to approach boats. They munch on fish and krill. They are the northern hemisphere’s smallest baleen whale species. Unlike many other whale ...

Mouth and throat are accordion pleated to be expandable, the better to take in more water and krill. With the throat fully expanded, a whale's front end is bulbous and swollen. As the next step in ...

The foul stench of penguin poop sets Antarctic krill on edge. In lab experiments, the mere scent of penguin droppings — or guano — sent krill scrambling for escape, researchers report March 20 in ...