Yesterday when I was writing about monkeys, I got so confused about what was a monkey, strictly speaking. Then what is an ape? And what is a primate? So just as I did for Big Cats I went on a search to sort my thinking out.A primate is any mammal of the group that includes lemurs, lorises, tarsiers, monkeys, apes and humans, so there are primates other than apes, monkeys and humans.
One major difference between apes and monkeys is that apes have no tails, and almost all monkeys have tails, so the quickest and easiest way to tell a monkey and an ape apart is by looking for a tail. Apes are also typically larger than monkeys, as is demonstrated in the size of gorillas and orangutans.
The gorilla, chimpanzee, bonobo and orangutan are called great apes in recognition of their comparatively large size and humanlike features; the gibbons are called lesser apes. The great apes are much more intelligent than monkeys and gibbons. Apes also tend to live longer than monkeys. Martin Jenkins book above will help solve these questions.
Monkey species include baboons, macaques, marmosets, tamarins, and capuchins. Ape species include humans, gorillas, chimpanzees, orangutans, gibbons, and bonobos. In evolutionary and genetic terms, ape species are much closer to humans than monkeys are.
Most of the apes have a celebratory day of their own and are easier to celebrate with picture books. Anthony Browne has made that very easy because so many of his picture books feature gorillas or chimpanzees, but not so sure about books about bonobos and gibbons. I know very little about bonobos, but when you read about them here as I did you realise we should know so much more about them as they share a remarkable 98.7% of our DNA, making them our closest living relatives. Bonobos are biologically conditioned to look for peaceful solutions, unlike their more rambunctious cousins, the chimpanzees so they are often referred to as peace ambassadors and they share their day with Valentines Day.
World Gorilla Day 24th September.
World Chimpanzee Day is 14th July.
World Bonobo Day is 14th February.
World Orangutan Day is 19th July.
World Gibbon Day is 24th October.