Chimpanzees ARE monkeys.
Here's the breakdown:
* Primates: Chimpanzees and monkeys belong to the same order: Primates.
* Suborder Haplorhini: Within primates, both chimpanzees and monkeys fall under this suborder.
* Infraorder Simiiformes: This is where the split happens. Simiiformes includes both monkeys and apes.
* Parvorder Catarrhini: Chimpanzees and Old World monkeys fall under this parvorder.
So, while chimpanzees are apes, they are also a type of Old World monkey, just like baboons, macaques, and others.
What sets apes apart from other monkeys:
* Lack of a tail: Apes (like chimpanzees, gorillas, orangutans, and humans) don't have tails.
* More complex brains: Apes have larger brains relative to their body size compared to most monkeys.
* More erect posture: Apes often walk on their knuckles or sometimes stand upright, while monkeys typically have a more quadrupedal (four-legged) gait.
So, remember: Chimpanzees are both apes *and* monkeys!