How big is a black monkey?

There is no such thing as a "black monkey". The term "black monkey" isn't a recognized species or group. It's likely you're thinking of a specific monkey species that has dark fur.

To tell you about the size of a monkey, you'll need to tell me which monkey you are interested in. For example, are you asking about:

* A black howler monkey? These monkeys are quite large, with males reaching up to 2 feet in length and weighing up to 20 pounds.

* A black-handed spider monkey? These monkeys are smaller, with an average length of about 20 inches and weighing 7-12 pounds.

* A black-and-white colobus monkey? These monkeys are also medium-sized, reaching up to 25 inches in length and weighing about 15 pounds.

Let me know which monkey you're interested in, and I'll be happy to tell you more about its size!