Avoiding predators is one of the most important jobs for many members of the animal world. Even ocean giants like baleen whales have something to fear from killer whales, their only known natural ...

Over a year after a dead 15-foot shark was found with mysterious bite wounds and stripped of its internal organs, DNA ...

Recent findings used wildlife forensics and citizen science data to provide the first confirmed evidence of killer whale ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...

Over time, that name morphed into "killer whales." Scientists don't know whether ... Males are bigger than females, but they both vary in size and weight. The largest orca ever recorded was ...

Scientists confirm that orcas and dolphins have lost the ability to return to dry land due to irreversible evolutionary ...

Wave.” A fierce predator faces pack ice killer whales in a breathtaking Antarctic showdown. Sitting so low to the water in the zodiac, the size and speed of the waves are even greater than I ...

Members of the marine mammal rescue group Dolphins Plus Marine Mammal Responder walk with a Pygmy killer whale that was found stranded off the beach at Long Key State Park in the Florida Keys on ...