Can you tell the age of a monkey by the length of its tail?

No, you cannot determine the age of a monkey by the length of its tail. While a monkey's tail can give you some clues about the animal, such as its habitat and diet, it is not a reliable indicator of age. The length and thickness of a monkey's tail can vary widely between species, and even within a single species, there can be considerable variation. Additionally, a monkey's tail can change throughout its lifetime, growing and shrinking in response to various factors such as diet, habitat, and injury.

Instead of relying on the length of a monkey's tail, researchers and wildlife biologists use other methods to determine the age of a monkey. These methods can include examining the animal's teeth, bone structure, and growth rate, as well as observing its behavior and social interactions with other monkeys.