True Believers TM will believe in anything. I guess whales (that didn't swallow Jonah because that would involve the "miraculous") came from wolf -like or cow-like mammals, according to True Believers TM (in evolution that is).
National Geographic Volume 50:
"The whale's ascendancy to sovereign size apparently began sixty million years ago when hairy, four-legged mammals in search of food or sanctuary, ventured into water. As eons passed, changes slowly occurred. Hind legs disappeared, front legs changed into flippers, hair gave way to a thick smooth blanket of blubber, nostrils moved to the top of the head, the tail broadened into flukes, and in the buoyant water world, the body became enormous."