For newborn animals, the first few months on Earth are full of new challenges. But animals born into captivity face can face an additional hurdle: being rejected by their parents.
Why do some animals abandon their babies in captivity? There's debate over the answer, but a common theory is that captivity causes animals to lose their instinctual ability to raise their young. Without witnessing the child-rearing process each mating season, animals in captivity have no familiarity with parenting.
Whatever the reason, child rejection is a tragic trend in zoos, experienced by orcas, dolphins, orangutans and, recently, one animal in The Cincinnati Zoo.