What anatomical change in the forelimbs facilitates the tree-kangaroo's arboreal lifestyle?

Answer

They are relatively longer and stronger than those of ground-dwelling relatives.

The forelimbs of tree-kangaroos have evolved to be relatively longer and stronger compared to terrestrial kangaroos, enabling them to grasp and climb effectively within the forest canopy.

What anatomical change in the forelimbs facilitates the tree-kangaroo's arboreal lifestyle?
animalmammaltree kangarookangaroo