When observing killer whales, there are some typical things one may expect to see. You may see them communicating with one ...

The once-booming population that passed California twice a year has cratered because of retreating sea ice. A new kind of ...

Officials say the whale was found dead on a ship docked near Philadelphia as investigators work to determine what happened.

In Patagonia, killer whales snatch seal lion pups from the shore. But as Steve Backshall recalls, these apex predators don’t ...

With roughly 45 teeth, each up to 10cm long and 4cm wide, orcas are perfectly engineered for ripping and tearing prey. These ...

Off the Pacific coast of Canada, scientists have captured something that challenges long‑held assumptions about life in the ...