Several orca rush a Weddell seal in this remarkable image taken from the air. The whales create a wave that washes the seal into the water, making a much more accessible meal for the orcas. This photo won the Behavior: Mammals category.
"I've known many of them for their entire lives. And now I'm watching them kill each other," says one researcher.
Turns out there might be a very understandable reason why your cat leaves its bowl half-empty.
Googly eyes are apparently one of a gull's biggest fears.
The hectocotylus is both a reproductive and sensory organ, Harvard scientists and others have found.
Unlike most bugs, snow flies thrive in the cold—thanks to a baffling mix of genetic kinks that scientists never expected to find.
The origins of whale midwifery might date back millions of years, the researchers say.
