Rare onager foal born at zoo after year-long pregnancy

An extremely rare onager foal was born at the Chester Zoo in England after a year-long pregnancy from mom Azita. The domestic donkey is critically endangered. Conservationists at the zoo said there are less than 600 surviving wild onagers.

A foal was born at the Chester Zoo in England after a year-long pregnancy from mom Azita. Conservationists at the zoo said there are less than 600 surviving wild onagers.