FISH

Sunfish are the biggest bony fish in the sea, but this species managed to elude scientists for centuries.

The Guardian is designed to capture the hordes of lionfish devastating reefs and fish populations in the Atlantic Ocean.

The eel babies join wild boars, deer, foxes, lobsters, butterflies, whales, and their own parents in the magneto-orienteering club.

The “faceless cusk” is rarely seen … and it probably can’t see us.

There are plenty of fish in the sea, but few are more astounding than the coelacanths—a group that defied extinction and turned the scientific world upside down.

Mirrors on the fishes’ bellies help control and direct their glow.

That makes them the longest-living vertebrates on the planet by 200 years. They may not even reach sexual maturity until age 150.

Researchers say the behavior of zebrafish, long used as a proxy for humans, is significantly altered by infection with a common parasite.

Study shows the ability to glow has arisen many more times than was previously believed.

Queen Elizabeth, Al Gore, and Tony Soprano all had one.

Just when you thought it was safe to go back in the water, right?

Archerfish join the ranks of non-human animals that can tell humans apart.