What’s the Difference Between a Monkey and an Ape?

Monkeys and apes share many similarities. They are both primates, which are characterized as social animals with large brains and hands that can grasp.

Ape or Monkey?

But what’s the difference between a monkey and an ape? How can you tell them apart?

Tails

The easiest way to tell if it’s a monkey or an ape is by the presence of a tail. Monkeys have tails. Apes do not. So if you see a tail, it’s not an ape.

Example: Look at the glorious tails on these guereza colobuses. Ape? No. Monkey? Yes!

Guereza colobus monkey

These colobuses have long bushy white tails. Photo by pilesasmiles / iStock.com.

See the long tail on this squirrel monkey as it leaps? Ape? No. Monkey? Yes!

Squirrel monkey

This squirrel monkey has a long tail. Photo by miroslav_1 / iStock.com.

Now look at the tail-less butt of this mountain gorilla. Ape? Yes.

Silverback mountain gorilla

No tail on this silverback mountain gorilla. Photo by VV-pics / iStock.com.

But wait! Some monkeys have teeny tiny stubs of tails that you can’t see.

Look at the butts of these Japanese macaques. Tail? Doesn’t look like it. But is it a monkey? Yes!

Japanese macaque

Can’t see a tail on this Japanese macaque, but it is a monkey. Photo by Denise Johnson / iStock.com.

So in certain cases where you can’t see a tail, it may be tricky to tell if it’s a monkey or an ape. But there are other distinguishing factors as well.

Size

Apes are generally larger than monkeys and have broader chests.

See the large chest of the orangutan? Ape? Yes.

Bornean orangutan

Bornean orangutan. Photo by Cede Prudente / iStock.com.

Location

Apes live in Africa and Asia. Monkeys live in Africa and Asia too, but they also live in Mexico, Central America and South America. No apes live in the Americas.

Example: This spider monkey is native to Central America and South America. Monkey? Yes.

Colombian spider monkey

Colombian spider monkey. Photo by Willy Mobilo / iStock.com.

Intelligence

Both monkeys and apes are intelligent, but apes have a larger brain-to-body ratio and have even greater intelligence. In fact, some apes can even communicate in human sign language!

Example: Apes, like this chimpanzee, are very sophisticated tool users, which is a sign of high intelligence. But it should be noted that there are also a few monkeys who use tools as well.

Chimpanzee using tools

This chimp is using tools to get fruit out of a box. Photo by Vincent_St_Thomas / iStock.com.

Memorize the Different Kinds of Apes

If all else fails, you could actually just memorize the different kinds of apes because there aren’t that many.

The different kinds of apes are:

  • Humans
  • Bonobos / Chimpanzees
  • Orangutans
  • Gorillas
  • Gibbons

So then if it’s an animal within that group, you know it’s an ape!

More Ape vs. Monkey Resources:

If you would like to learn more about apes, see our articles: Bonobo, Bornean Orangutan, Chimpanzee, and Mountain Gorilla.

To learn more about monkeys, see our articles: Guereza Colobus Monkey and Squirrel Monkey or view our archive of monkey blog posts.

PHOTOS: Baby Monkeys at San Diego Zoo

Baby squirrel monkeys at San Diego Zoo

Baby squirrel monkeys at the San Diego Zoo. Photo credit: San Diego Zoo Wildlife Alliance.

Lots of monkeying around happening at the San Diego Zoo these days! The zoo is celebrating the birth of four baby monkeys: two squirrel monkeys – one born Nov. 27 and one born Nov. 28, a Schmidt’ red-tailed monkey born Nov. 11, and a DeBrazza’s monkey born Oct. 28.

The babies and mamas are doing well, and guests to the zoo can now view them in their habitats.

For more information, visit the San Diego Zoo website.

To learn more about squirrel monkeys, see our article, Squirrel Monkey.

Baby red-tailed monkey and mama at the San Diego Zoo.

Baby Schmidt’s red-tailed monkey and mama at the San Diego Zoo. Photo credit: San Diego Zoo Wildlife Alliance.

Baby red-tailed monkey at the San Diego Zoo.

Baby Schmidt’s red-tailed monkey at the San Diego Zoo. Photo credit: San Diego Zoo Wildlife Alliance.

Baby DeBrazza’s monkey and mama at the San Diego Zoo

Baby DeBrazza’s monkey and mama at the San Diego Zoo. Photo credit: San Diego Zoo Wildlife Alliance.