How did the Black Spider Monkey get its name?

The name "Black Spider Monkey" is a bit of a misnomer! There isn't actually a monkey species with that specific name. It's likely you're thinking of one of these two monkeys:

* The Black-handed Spider Monkey (*Ateles geoffroyi*): This monkey gets its name from the distinctive black coloration of its hands and feet. Its fur is typically a dark grayish-brown color.

* The Black Spider Monkey (*Ateles paniscus*): This species, also known as the White-faced Spider Monkey, is almost entirely black in color except for its white face.

It's important to note that these names are common names and may vary in different regions. However, the most common reason for the "Black Spider Monkey" moniker is the black coloration of either the hands/feet or the entire body.

Here's why the "spider" part of the name is used:

* Their long limbs and prehensile tails: These monkeys have extremely long limbs and a strong, prehensile tail that acts as a fifth limb. They use these features to move through the rainforest canopy with agility, swinging from branch to branch like spiders.

So, while there's no single species called the "Black Spider Monkey," the name likely refers to a specific monkey with black features and spider-like movement.