Is Current Warming Natural? In Earthâs history before the Industrial Revolution, Earthâs climate changed due to natural causes not related to human activity. Most often, global climate has changed because of variations in sunlight. Tiny wobbles in Earthâs orbit altered when and where sunlight falls on Earthâs surface.
Eel prey on fish and small crustaceans. Some eel have mouths consisting of a sucker surrounded with small teeth. The teeth pierce the scales and skin of fish and the eel sucks the blood for nourishment. Other species of eel have many sharp teeth and are able to bite and tear their prey into pieces to eat.
Remove these ads. 1  There are over 400 species of eel. 2  Eels live in both saltwater and fresh water. 3  Even though the eel looks like a snake it is really a fish. 4  Eels have gills and very sharp teeth. 5  Most eels hide and live in caves and rock crevices. 6  Some species of eels travel up to 4,000 miles to breed. 7  After the eel breeds, it dies. 8  Eels begin ... Eels live in both saltwater and fresh water. 2  Even though the eel looks like a snake it is really a fish. 3  They have long, narrow bodies with long dorsal and anal fins. 4  Most eels have no scales.