A pig-tailed macaque yanked at a coconut on a piece of string until it fell to the floor, a small victory for the simian student at a Malaysian school that trains monkeys to harvest fruit for farmers.

This study demonstrates that only a minimal time investment was needed to train a large troop of laboratory non-human primates to co-operate in the catching procedure. A group of 45 rhesus macaques ...

The psychological well-being of laboratory primates is enhanced when they are allowed to voluntarily participate in their own care through a process called positive reinforcement training (PRT).