The tragedy of Punch the monkey: why do mother animals abandon their offspring?

Footage of Punch, a seven-month-old Japanese macaque, has gone viral around the world after he was rejected by his mother and formed a bond with a soft toy

A baby monkey in Japan has captured hearts around the world after videos of him being bullied by other monkeys and rejected by his mother went viral last week.

Punch, a Japanese macaque, was born last July at Ichikawa zoo. He has drawn international attention after zookeepers gave him a stuffed orangutan toy after he was abandoned by his mother.