What is the name given to animals that maintain constant body temperature regardless of the environment?

Warm-blooded

What was Dionysus the god of? Who portrayed the original Freddy Krueger in "A Nightmare on Elm Street" films? In boxing, what term refers to knocking your opponent down three times in one round, leading to an automatic win for some jurisdictions? In swimming, what's the minimum distance for an official marathon swimming event? Which Irish author wrote "Ulysses"?