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News Link • Biology, Botany and Zoology

Tree-loving orang-utans hang out on the forest floor


The finding could have implications for conserving the endangered species – and perhaps help efforts to understand why our ancient ancestors left the trees.

With their long, strong arms and short bowed legs, it's easy to see why orang-utans are considered the most arboreal of all great apes. But male Bornean orangs have been known to sometimes climb down to the ground.

To find out just how often the apes leave the canopy, Brent Loken at Simon Fraser University in Burnaby, Canada, and colleagues placed a network of ground-based cameras across a 38-square-kilometre region of forest in north-eastern Indonesian Borneo.

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