Sharks and whales help reduce the levels of carbon dioxide production.
A small(ish) cetacean earplug can tell scientists a lot about what it's like to be a 100-ton aquatic mammal on a changing planet.
The tooth itself is nearly a foot long.
SeaWorld says employees spied on activists to protect staff, customers and animals in the face of "credible threats."
Scientists think the whales have learned to communicate about the best times and places to steal sablefish right off the line.
Critics say the company's decision doesn't address the fundamental problem: the welfare of killer whales.
The marine-life park has been under fire after the 2013 documentary "Blackfish."
Drone footage captures the stunning moment off the coast of Esperance in Western Australia.
Humpback's not a bad way to get around.
Luckily, the vacationing couple were okay.
The material is gray and waxy and helps whales pass sharp objects.
Fin whales are considered endangered and illegal for most countries to transport.
The appearance of a dead whale in the Bay Area city is the latest development in an ongoing trend.
Everybody is freaking out about the sighting of this albino beast.
It's kind of like a turducken but with gigantic, ancient sea creatures.
Researchers find the secret behind the fin whale's unusual lunge feeding, and possibly why it's so large.
Animal rights group, People for the Ethical Treatment of Animals, objects to the inclusion of a SeaWorld float in the annual parade.