Scientists found shark teeth inside fossil whale skulls, revealing how sharks fed on whales millions of years ago.

WARNING, GRAPHIC CONTENT: The footage shows several orcas taking turns with the carcass, highlighting their cooperative ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers have observed dolphins and killer whales hunting together for the first time as part of a new study released on ...

Ask anyone who’s had encounters with killer whales, and they will tell you just how smart they are. Orcas are incredibly ...

A unique collection of prehistoric bowhead whale bones, dating back 11,000 years, reveals a previously untold story of the ...

Japan killed 122 pregnant minke whales during a highly controversial annual whaling expedition that Tokyo defends as scientific research but conservationists call "gruesome and unnecessary". The ...

Two severed fins bearing the tooth marks of other killer whales have raised a troubling question: are some orcas hunting ...

Blue whale calves enter the world already the size of a bus, yet they still face danger. A hungry killer whale sees a slow, ...

The discovery, located in Grindasundet near the village of Telavåg, is the first time such physical evidence has been found underwater and linked to the oldest recorded Norwegian laws. "The newly ...