Aside from humans, chimpanzees are perhaps the most sophisticated creatures in all of the animal kingdom. If a chimpanzee notices a beautiful landscape, he/she will appreciate it in a similar way to humans. They’ve also been observed engaging in “pretend play,” such as cradling a rock as if it were a baby. Like other intelligent animals on this list, they also use tools, have mourning rituals, and respect other non-threatening species. Other amazing facts? Chimps can understand the values of the numbers 1-9, they can laugh, use sign language with humans and are even capable of deception and manipulation.