This can include particular vegetation for foraging, or the presence of older trees with their larger hollows, a requirement for some arboreal mammals and birds.

Half of their life is spent in trees and they are one of the largest arboreal mammals.

Owls can snatch birds and some arboreal mammals directly from tree branches as well.

It mainly preys on amphibians and arboreal mammals, such as squirrels.

Some arboreal mammals became the primates, of which one lineage would lead to modern humans.

Monkeys are arboreal mammals in the primate order.

More rarely, these eagles will snatch arboreal mammals, such as monkeys, hyraxes and squirrels, out of trees in flight.

A civet is small, mostly arboreal mammal native to the tropics of Africa and Asia.

The olfactory bulbs of lemurs are comparable in size to those of other arboreal mammals.

Broadcast 22 January 2003, the next programme surveys arboreal mammals.