The birth of one of the rarest mammals on the planet has thrilled keepers at a British zoo. The Critically Endangered African wild ass was born on Sunday 20 August at Marwell Zoo. Its birth is particularly important as there are fewer than 200 left in the wild. Native to Eritrea, Ethiopia and Somalia, African wild asses are preyed on by African lions and Ethiopian wolves. They have also historically been hunted by humans for food, resulting in very low numbers of these animals surviving in the wild. The new arrival is reported to be doing well as it spends time bonding with its mother Nadifa. The new foal will play an important role in the future preservation of its species for future generations.