One glow-in-the-dark animal is the swell shark ... Special proteins under the shark's skin absorb moonlight and then reflect it as an eerie green color on the lighter parts of its body.

But that’s not the only unusual thing about this shark. Green fluorescent proteins in the skin reflect moonlight, and to another member of the same species, the swell shark will appear to be ...

A Louisiana aquarium has a new star — and a mystery — on its hands after a baby shark was born in a habitat without any males. The Shreveport Aquarium announced last week that Yoko the swell ...