Emperor Tamarins

My animal is an Emperor Tamarin, currently it has a mustache and eats fruit, insects, and leaves. Its mustache helps other Emperor Tamarins recognize it. In the future my animal loses its mustache due to climate change, it also becomes fatter because it eats a lot of fruit and leaves. It begins to grow a longer tail to be able to swing in the tops of trees. It grows bigger ears in order to survive from birds, dogs, snakes, and many other predators that it needs to survive from.