Newborn white rhino Silverio takes his first steps in Chilean zoo

Silverio, a twelve-day-old white rhino, runs next to his mother Hannah during his presentation at the Buin Zoo in Santiago, Chile (AP Photo/Esteban Felix)

Hannah, a 13-year-old white rhinoceros, has delivered a newborn calf in a rare zoo birth for the almost-endangered species.

The arrival of the male calf, named Silverio, two weeks ago marked the third time that a white rhino had ever been born in South America.