A male orangutan, clinging precariously to overhanging branches, flails the water with a pole, trying desperately to spear a passing fish.
It is the first time one has been seen using a tool to hunt.
The extraordinary image, a world exclusive, was taken in Borneo on the island of Kaja, where apes are rehabilitated into the wild after being rescued from zoos, private homes or even butchers' shops.
And you know where that inevitably leads:
So I think I'll run down to Wal-Mart and pick up some ammo.