Ramir, a 6-week-old Indian rhinoceros, drank three bottles of milk from one of his caretakers, Marcia Diehl, a San Diego Zoo's Wild Animal Park keeper. The male calf is being bottle-fed more than a gallon of milk five times per day. He weighs 350 pounds, up from 150 pounds at birth. Ramir was born Dec. 23 to a first-time mother that was not producing enough milk and was not attentive to the newborn. A cold spell during his first few days led to hypothermia. Veterinarians and keepers intervened and have been caring for him since. Ramir is the 58th Indian rhinoceros born at the Wild Animal Park since 1978, making the Park the foremost breeding facility in the world for this endangered species.