Camouflage is a crucial survival tactic for many underwater creatures. See how many of them you can spot in these photos.

The mention of giant underwater creatures might conjure images of whales or mythical monsters. But the largest creature recorded in history might surprise you.

Have you ever seen a diving beetle? They’re one of my favorite animals. They live underwater and breathe air from a bubble attached to their butts. I talked about all the ways animals breathe ...

Ashlee Lillis’ interview subjects don’t talk. But they have plenty to say through grunts, growls, clicks and other odd noises. “I put my hydrophone — which is our underwater microphone — on the end of ...

A gelatinous sea creature could teach engineers a lesson or two. Nanomia bijuga, a marine animal related to jellyfish, swims via jet propulsion. A dozen or more squishy structures on its body pump ...

Glowing red lobsters, octopus gardens, towering tree-like corals and glass sponges that are thousands of years old make up just a few of the life forms at this new seamount. When scientists say that ...

Animals have evolved all manner of methods to evade danger. For one lizard species living in the tropical forests of Costa Rica, their unique escape tactic involves a makeshift oxygen tank that allows ...

Underwater surfaces can get grimy as they accumulate dirt, algae and bacteria, a process scientists call "fouling." But furry mammals like beavers and otters that spend most of their lives wet manage ...

A Florida Atlantic University study finds wild blacktip sharks can detect low-frequency sounds from up to 74 metres away and ...

The development of miniaturised electronic tags that can be attached to animals has been one of the most spectacular developments for biology, environmental science and wildlife conservation in the ...