Here's why:
* Different Species: There are multiple species of spider monkeys, each with its own population size.
* Difficult to Count: Spider monkeys live in dense rainforests, making it very challenging to accurately count their numbers.
* Constantly Changing: Populations fluctuate due to factors like habitat loss, hunting, and disease.
However, we do know that all spider monkey species are considered endangered or critically endangered. This means their populations are facing serious threats and their numbers are declining.
To learn more about the conservation status of specific spider monkey species, you can check resources like:
* IUCN Red List: This is a global database of species at risk.
* WWF (World Wildlife Fund): This organization works to protect wildlife and habitats around the world.
* Primate Conservation Inc.: This organization specifically focuses on the conservation of primates, including spider monkeys.
It's important to remember that every individual spider monkey matters, and their conservation is crucial.