Monkeys that adopted an urban lifestyle in India are mostly left-handed – in contrast to humans and many other primates that live on the ground.
The findings clash with long-standing claims that primates that come down from the trees generally evolve a tendency to be right-handed, raising questions about what really drives this trait.
The Hanuman langurs (Semnopithecus entellus) – named in honour of Lord Hanuman of Indian mythology – gave up their natural homes…