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Scansoriality in Mammals

primates, one of the groups most adapted for life in the trees. Scansoriality is not limited to the tropics, however. In the boreal forests of the Northern Hemisphere, many mammals are adept climbers, including many species in the family Mustelidae (e.g., marten and sable) and rodents such as squirrels. North American porcupines regularly ascend trees, and if good terrestrial den space is not available, they often rest in trees for much of the winter. Desert ecosystems also support climbing mammals. In the