Last time we put a Polar Bear in the desert and we still feel bad about that, but there's a lot more going on in ecosystems than just temperature. In fact, there are so many elements in ecosystems, that if just one leaves or gets out of whack, it can be terrible for the whole thing. But today, let's talk about Spider Monkeys. This first series is based on 5th grade science. We're super excited and hope you enjoy Crash Course Kids! Venus Image Credit: Brocken Inaglory https://en.wikipedia.org