Lemurs and evolution
Professor Brian Cox visits Madagascar to try and track down the rare aye-aye lemur. He explains how lemurs have evolved to fulfil many different ecological niches on the island.
Brian describes the unique adaptations of an aye-aye, like its unusual teeth, perfect for gnawing away bark, and its elongated, bony middle finger, which it uses to prize out grubs.
Available since: Wed 13 Mar 2013
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