Bonobos, chimpanzees, gorillas, and orangutans—the four species of apes—differ from monkeys in their size, gait, brain development, and absence of tails.

Sure, I can provide information on how apes differ from monkeys.

1. Size: Apes are generally larger than monkeys. They have a more robust and upright body structure.

2. Gait: Apes have a different way of moving compared to monkeys. They use their arms for swinging from branch to branch (brachiation), while monkeys often walk on all fours.

3. Brain Development: Apes have more developed brains than monkeys. This is reflected in their higher intelligence and more complex social structures.

4. Absence of Tails: One of the most noticeable differences is that apes do not have tails, while monkeys do. This is a key distinguishing feature between the two.

These differences are due to the separate evolutionary paths that apes and monkeys have taken over millions of years.