The largest fish is the whale shark, which grows to more than 50 feet in length.

The smallest fish is the goby.  It is about half an inch at adulthood.

There are more than 20,000 identified species of fish.

You can tell how old a fish is by counting the growth rings on its scales just like you count the rings on a tree.

Sturgeons live to be 50 or more years old.

The average discharge from an electric eel is 350 volts of electricity, but as much as 650 volts have been measured.

The most poisonous fish is the stonefish.  It's poison is powerful enough to kill a human.

The slowest fish is the seahorse which travels at 0.01 mph

The male seahorse carries the eggs in his pouch until they hatch.

Fish are the largest group of vertebrates.

The oarfish is the longest bony fish in the world reaching a length of 50 feet.

The bluefin tuna is among the fastest marine fish to live in the oceans. An adult can swim up to 55 miles per hour..

A group of herring is called a seige. A group of jelly fish is called a smack