i assume "saltwarter" means saltwater. saltwater eels do not sting, they do not have anthing that can sting you. but god gave them viscious jaws, they have a very strong bite and large eels are known to have taken off divers hands. so my advice to you is not to stick your hand anywhere their jaws.
which idiot wrote that? you can eat eat eels. when they're dead they don't bite.
No
yes
They don't, although electric eels can give you an enormous electric shock.
for protection
No such animal exists; there are electric eels and stingrays, but no electric sting rays.
with their high powered electricity, if you make them mad enough, they will leave a deadly sting!
No. Walleye need fresh water, preferably well oxygenated cooler water.
Yes Seahorses and Eels are fish. Seahorses belong to the class of Actinopterygii, or Ray Finned Fish. Eels, there are dozens upon dozens of fish that get called "Eel", from Moray Eels to Electric Eels to Spiny Eels. They are all fish.
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.
Eel, Snake, Worm
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.
Adult eels are called eels, babies are elvers