Scientists have no problem using the word “play” to describe dogs who fetch sticks or cats batting around yarn. But with sharks, it’s a whole other ballgame. A new study in the journal Applied Animal ...

Have you ever found a mermaid’s purse? These leathery pouches that wash up on the beach are actually the egg sacs baby sharks ...

New video shows sharks swimming through hoops, and picking them up with their noses. It sure looks like they are having fun. But researchers are divided. A California horn shark (Heterodontus ...