This is the story of one man’s quest to save baby elephants from poachers.

Peter Mbulu is up before the sun every day to look after the 21 orphaned and abandoned elephants in his care in Nairobi, Kenya.

As the video above shows, each morning the elephants march in single file behind Mbulu away from the crowded capital city and back into their natural bush habitat of Nairobi National Park.

"I'm a keeper of wild orphaned elephant babies, and every day I have to take these young elephant babies out into the park so they can spend their day in a natural environment, because they are wild babies and they need freedom and exposure into natural environment," said Mbulu.

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Mbulu has been an elephant keeper at the David Sheldrick Wildlife Trust sanctuary for the past 10 years.

His job is to raise young elephants that have been orphaned or abandoned because hunters have killed their parents for their ivory tusks.

"I want to help these animals because they are facing very, very bad problems: their mothers are being killed and no one is trying to help them except here in the nursery, where we have to rescue them, bring them here, we hand rear them, we send them back again,” he said.

Mbulu spends his entire day with the elephants, bottle-feeding the milk-dependent babies every three hours and standing watch for predators like lions.

He can tell the elephants apart by their faces and personalities.

The public is able to view the vulnerable orphans in silence for one hour each day.