they dont they build up all the waste and explode /improved improved
The cousin of the shark is the ray. Both sharks and rays belong to the same group of cartilaginous fishes known as elasmobranchs.
the piezo-eletric property of a crystal is the principle of quartz clock
you turn them on.
elektross
eletric and ice
Thomas Edison.
Thomas Ahearn
The types of eels are salt water eels, freshwater eels, the swamp eels, rubber eels and the electric eels. It is an elongated fish that lives in the shallow waters.
George Eastman
ground
i think in the place where their is eletric
We do not know as eels do not leave good fossils. Also your English is a bit wrong your question should be worded "How many extinct eels were there". This is because if they are extinct they would have lived in the past not the present.