The American eel is a teleost fish in the group eels. It occurs in the Americas, from Greenland to Brazil. It has an elongated body, like that of a snake. It lives in rivers and lakes, mostly in North and Central America.
The animals are active during the night. At day they hide on the ground of the river or lake. They feed on insect larvae, worms, smaller fish and small crustaceans. To spawn, they migrate to the Sargasso sea in the Atlantic Ocean. They grown to a length of about 1.5 metres (4 ft 11 in) and a weight of up to 7 kilograms (15 lb).