A common neurotoxin produced by algae blooms is making California sea lions more aggressive. Here’s why it has the power to change behavior—and the danger it poses.

Tigers and monkeys and tapirs, oh my! Joel Sartore's latest book, "National Geographic Photo Ark: Babies," captures the ...

So, blobfish don’t really look like melting ice cream in their natural environment. Underwater, they’re shaped like tadpoles: ...

The sea mammals may actually be able to sense the amount of oxygen in their blood—something we humans can't do.

Scientists have spent a lot of time thinking about how the nutrients in whale feces—also known as whale pump —benefit species ...

Climate change is also driving penguins to colonize new areas, or to stay in regions longer than they normally would, ...

For years, scientists felt like the fish they were watching watched them back. A new study suggests they can recognize a diver's outfit.

A hidden ecosystem of giant sea spiders, octopuses, and other stunning sea creatures shows how life can flourish even when ...

Found primarily in the Gulf of Mexico, but also as far north as Nova Scotia, Kemp’s ridleys are among the smallest sea turtles ... Highly migratory animals, they often travel hundreds of ...