Borneo tough for red-haired vegans

The island’s fruit bounty fluctuates, creating dips in orangutans’ food supply

The near-vegan lifestyle of wild orangutans in Borneo’s forests means the apes face recurring protein droughts severe enough that their body tissues start to waste away.

BORNEO ORANGUTANS Fluctuations in the fruit supply on the island of Borneo often leave wild orangutans deficient in protein, researchers have found.