(( ~ A snake, perhaps the cobra? ~ ))
/I take snakes.
1) They are cold blooded. 2) The most deadly snake is a spitting cobra, which can spit it’s venom about, I think it’s from two meters away. (really have to look that up.) 3) The king cobra is a cannibalistic snake. 4) There are snakes in one of the arctic countries. 5) In britian the only venomous snake is the adder. 6) Sea snakes hunt along side sharks. 7) Rattlesnakes remember where they hatch and return there. Which could be dangerous as most of the time someone lives there. 8) Some snakes give birth to live young.
That’s all I can think off at the moment.
The character I think most suits this animal would be the master, from doctor who. He is sly and intelligent, and one of the most deadliest villains.