Orangutan from Borneo photographed using a spear tool to fish

Tool use among orangutans was first documented by Carel van Schaik. In 1994, Carel observed orangutans developing tools to help themselves eat, while conducting field work in Gunung Leuser National Park, in the northwest Sumatra. Specifically the orangutans were using sticks to pry open pulpy fruits that have "Plexiglas needles" capable of delivering a painful…

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PDF) Orangutans venture out of the rainforest and into the Anthropocene

Bornean Orangutan (Pongo pygmaeus)

PsBattle: Orangutan from Borneo photographed using a spear tool to fish : r/photoshopbattles

PsBattle: Orangutan from Borneo photographed using a spear tool to fish : r/photoshopbattles

Orang-utans can swim – we've got pictures to prove it

An Orangutan Learns to Fish

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