The zenkey snuggles up to its donkey mother at the Nasu Safari Park. Photo: AFP A Japanese safari park says it will put a zebra-donkey hybrid, believed to be the world's only living "zenkey", on public view next week. "As we keep herbivorous animals without separating them, the unbelievable can happen," said Osamu Ishikawa, deputy head of Nasu Safari Park, 150 kilometres north of Tokyo. "A donkey was pregnant and everybody was expecting a donkey foal," he said, adding that keepers had been surprised to see a striped animal born on August 8. The male foal, now weighing about...