When the team placed an eel in a tank, they saw that it burrowed its tail first. This behavior is highly unusual for a moray eel. Sign up for Chip Chick's newsletter and get stories like this ...

In this activity, you will decide which type of fish—moray eels or bull sharks—is more ... Other fishes have gill slits. Tails: Fish tails also take many shapes. A crescent-shaped tail ...