Here's why:
* Chattering: Squirrels are known for their chattering sounds, which they use for communication.
* Tree Dwellers: Squirrels are highly adapted to living in trees, with strong claws and agile bodies that allow them to climb, jump, and navigate branches with ease.
However, other animals might fit the description, depending on the specific context. For example:
* Monkeys: Some monkey species chatter and live in trees.
* Birds: Some birds, like woodpeckers and parrots, can chatter and live in trees.
To give a more precise answer, it would be helpful to know more about the specific context of the question.