Freshwater and sea turtles may look similar, but neither one could survive in the other's territory for these reasons.

The ocean covers more than 70 percent of Earth’s surface, yet we’ve explored less of it than we have the surface of the moon.

Crocodiles dominate in water with their stealthy movements and powerful tails. On land, they’re no slouches either, capable ...

There is a reason we call ourselves the Blue Planet.

What are some animals that give birth to huge numbers of offspring at once?” (Watch a female sea urchin produce millions of eggs.) The mola, or ocean sunfish, looks like an animal cracker someone bit ...

Beneath the surface of the world's oceans, powerful currents act like invisible highways for marine life. These massive water ...

Discover 10 surprising animals you didn’t know produce milk, from whales and bats to seahorses and penguins, and learn how ...

New research has found that deep-sea mining in international waters could threaten at least 30 species of sharks, rays and ...

Nearly 1,800 animals since 2009 have had life-threatening encounters. A new report details the grim circumstances facing marine animals as millions of pounds of plastic continue to make their way into ...