“Have you ever seen this little guy?” she asks. “I’ve been through every book, and it’s not in any of them.”

In July's Critter Hunt, we're introduced to a snake ... no, an eel... no, a Hairtail Blenny!

Understanding Marine Behavior: The Life of a Cleaner Fish

A new species of box jellyfish is discovered in the Caribbean.

Watch a sumo crab cruise across the seafloor, while disguising its movement by carrying pieces of debris and other marine life

While finning around a sand and algae bottom not far from where the Rocio del Mar swings at anchor in the Gulf of California, we come face to face with a monster living in a hole. We’ve seen the silver-dollar-size burrows before in ...

The porcelain crab is a wonderful example of an unlikely confederation