Crocodiles are built for survival and that's how they swam the Atlantic.
Scientists dislike using the terms "cold blooded" and "warm blooded."
What insect has the longest life span of them all? Find out on this Moment of Science.
You probably already know that humans are warm-blooded, while creatures like snakes are cold-blooded. Scientists prefer the terms endothermic and ectothermic. Snakes are ectothermic–they’re dependent on their environment for heat.