A massive gang of over 60 orcas was seen brutalizing an endangered pygmy blue whale off the coast of Western Australia by a ...

The episode, witnessed off the Australian coast, offers a rare glimpse into the brutal efficiency of the ocean’s top predator.

It is easier for a person ... whales face two challenges: storing enough oxygen to hunt successfully and withstanding the enormous pressure. High pressures change the uptake of gas in the body.

MR. GRAY'S suggestion (NATURE, Mar. 17, p. 421) that whales dying at the surface sometimes float because the air in their lungs is held in by the valves of the blowhole is very interesting ...