A heartbreaking video shows a pod of orcas hunting a humpback whale calf in the Sea of Cortés off the coast of California.

There was no immediate word on what caused the death of the killer whale known as I76, but threats to the species include ...

Drone footage captured the shocking moment a pod of orcas hunted and drowned a humpback whale in the Sea of Cortés in ...

A marine wildlife expert says he witnessed orcas gather around I76 as the Northern Resident killer whale passed away in waters surrounding Vancouver Island.

We’ve sifted through the latest offerings from TV and streaming platforms to find the best shows you should be watching this week.

In the cathedral of ice beneath Antarctica’s frozen sea, male leopard seals conduct their solitary concerts. Day after day, sometimes for 13 hours straight, these predators plunge into the frigid ...

Twenty million years ago, the oceans were ruled by a predator unlike any other: the Megalodon. This colossal shark, the ...

The creatures, which ranged in size from that of a fox to more than 50 feet long, divided their time between the coast and ...

Meltwater flowing from the Greenland ice sheet is stirring up nutrients from the ocean depths, fueling algal blooms. A new study reveals the extent to which melting is driving the growth of algae.