Technically, dolphins are whales, and whales are more closely related to cows than sharks.
Despite legal protection, North Atlantic right whales keep getting struck accidentally by fishing boats and entangled in gear.
Dozens of species in the reserve cannot be found anywhere else in the world.
For 200 years the bones were forgotten by locals and visitors.
This bulbous-headed animal had to learn to fit in with her sleeker cousins.
Activists say overfishing will have devastating consequences for the species.
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.