A fish is a cold-blooded aquatic vertebrate with gills, a swim bladder, and paired fins. Though this description may seem specific, the size, color, and habits of fish actually vary drastically.

Researchers in New Zealand saw a colorful blob on top of a shark’s head. When they looked closer, they realized it had eight arms. By Melissa Hobson When she spotted the mako shark in the ...

Researchers with the University of Auckland recently witnessed an extraordinary scene in which a mako shark appears to be providing taxi service for an octopus. The bizarre interaction, captured ...

Earlier this week, three two-member teams entered the 120,000-gallon shark tank at the Long Island Aquarium in Riverhead – all for a good cause. Together, they and others raised $60,000 to ...

People’s Arc of Suffolk and Rise Life Services co-hosted an April Fool’s Day “Shark Tank Showdown” fundraiser on April 1 with six of its fundraisers taking a dive into the shark tank at the Long ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Paleobiologist Dr ...

A shortfin mako shark, the fastest-swimming shark in the world, was caught on camera with an octopus catching a ride on its back off the coast of New Zealand.

Cassidy is an updates editor whose main responsibility is to write and edit articles on a range of home improvement topics. Her passion for lifestyle writing began with her editorial ...

The biggest, most formidable shark to have ever roamed the ocean may have been even larger than previously thought, according to a new study. The research, published Sunday in the journal ...