Write the conversation response. 
 + What is the size of a Tree-kangaroo?
 + The grizzled tree-kangaroo grows to a length of 75–90 cm (30 to 35 in), with males being considerably larger than females, and its weight is 8–15 kg (18-33 lb).
 + How does it live in the tree?
 + Tree-kangaroos have several adaptations to an arboreal life-style.
 + What are some of the adaptations?
 + Compared to terrestrial kangaroos, tree-kangaroos have longer and broader hind feet with longer, curved nails.
 + What else?
 + They also have a sponge-like grip on their paws and soles of their feet.
 + Any other adaptations?
 + Tree-kangaroos have a much larger and pendulous tail than terrestrial kangaroos, giving them enhanced balance while moving about the trees.
 + How does it move on the ground?
 + 
Locomotion on the ground is by hopping, as with true kangaroos.