Japanese zookeepers have finally figured out how Momo, their 12-year-old white-handed gibbon, got pregnant even though she lived by herself and had never had a male visitor. The key? A literal hole in the wall.
Japanese zookeepers have finally figured out how Momo, their 12-year-old white-handed gibbon, got pregnant even though she lived by herself and had never had a male visitor. The key? A literal hole in the wall.