Spider monkeys live in fluid social groups that split and reform, allowing information about food sources to spread across the population. By moving between subgroups, individual monkeys help create a ...

Spider monkeys possess a sophisticated social system, sharing "insider knowledge" about the best fruit trees in the forest rather than foraging randomly, new research has found. Scientists discovered ...

Deep in the forests of Mexico’s Yucatan Peninsula, a story of animal intelligence and social cooperation has unfolded over the last decade. Researchers studying Geoffroy’s spider monkeys have ...