Are eels a species of snake?
Eels are a type of fish.
Are eels evolved from snakes?
The evolution of land snakes was started by sea snake kraits with lungs, who had evolved from eels perhaps 190 million years ago and around 90 million years ago made land their permanent home and became land snakes.
What’s the difference between an eel and a snake?
Eels have gills, as most other fish do, and filter air from the water in order to breathe. This means that they never have to go to the surface. Snakes, on the other hand, do not have gills, but lungs.