Whales

Fisherman spots mysterious giant blob that turns out to be a common sea creature.

Marine biologists report observations of humpback whales acting as unlikely marine vigilantes, ganging up on killer whales when they attack other species.

The discovery of a new species of rare and elusive whale in the North Pacific shows how little humans know about the deep and vast ocean, researchers say.

A brown bear in southeastern Alaska was dwarfed by its unusual and enormous meal — a beached sperm whale carcass.

On May 20, tourists on an Australian cruise witnessed an incredible, albeit somewhat gruesome, sight.

A dead whale that washed up on a southern Australia beach has something peculiar in its mouth: a sharp and pointy fang, say the researchers who examined it.

To save the whales, and dolphins, one place to start is Tanzania.

A suspected "sea monster" that washed ashore in Mexico is likely just a portion of a sperm whale's head.

Before baleen whales developed their iconic comblike filter-feeding structures, they relied on their pointy teeth and a suctioning method to nab and gulp down prey, a new study finds.

Japan resumes whale hunts that have come under increasing scrutiny and censure from the international community for their questionable scientific merit.

Check out amazing photos of humpback whales breaching the ocean surface as scientists monitor their lengthy sea travels.

Earth has a poop problem. The extinction of whales and other megafauna has resulted in a shortage of mega-manure, which is essential for spreading nutrients around the globe at sea and on land.

A massive whale's nerves can unfold and recoil like a bungee cord, explaining how they can balloon their mouths while feeding.

A lucky group of ocean lovers got the surprise of a lifetime when a huge sperm whale swam into their live video broadcast.

The western gray whale now holds the record as the mammal with the longest known migration, researchers say.