Sydney ferry passengers on their morning commute were greeted by a humpback whale, which entered the harbour around 8am on ...

A marine biologist captured video of the moment a bowhead whale cracked through a layer of ice in West Greenland to take a ...

In a baffling show of generosity, killer whales across the globe are giving fish to humans—and scientists are racing to ...

Orcas were spotted using kelp as a grooming tool on each other, the first known use of tools among cetaceans for something ...

Jono Allen tells PEOPLE exclusively about his mesmerizing career as an underwater photographer, and how one ocean dive with whales changes his life forever ...

A pair of North Atlantic right whales seen off Florida in the Gulf may be headed back north after being seen in Bimini in the Bahamas.

Scientists documented 34 remarkable cases of wild killer whales trying to give food to humans across four oceans over 20 ...

Scientists are closer than ever to deciphering sperm whale communication. Their breakthroughs could open the door to expanded whale rights and even legal personhood.

This Canadian kayak tour lets travelers go whale-watching at eye level A sea kayaking journey through the Johnstone Strait offers eye-to-eye encounters with orcas, humpbacks and sea lions.

Humpback whales may be communicating with humans in a playful way, according to researchers who have been studying the marine mammals' behavior.

A study reveals 87% of humpback whales near Long Island bear scars from fishing gear, with juveniles also injured by ship propellers.

Thousands of gray whales are migrating past the Oregon coast in poor condition, with record-low calf numbers and visible signs of starvation. Researchers link the crisis to changing Arctic feeding ...