A documentary about animals.
No story here; just lots of footage with animals in it. It starts out with a direction, recounting the evolution of animals through the ages, but it eventually settles on random footage of animals, with narrators occasionally adding voices to the animals or telling stories about them. If this sounds like it could get a bit tiresome, it does, but it does help if you like to look at animals, though some of the bullfight footage is bound to be unpleasant. It's included here for having some stop-motion dinosaur animation near the beginning of the movie, and a shot of the Earth being blown up at the end (they're talking about man being the only animal who destroys himself). Irwin Allen would later move on to more conventional fare.