Baby hippo coming close to a giraffe. The video opens to show a baby hippo approaching a giraffe who is behind a cage. As the baby comes close, the giraffe puts its head down to greet it.

Wildlife expert L.D. VAN ESSEN answers: Of course, we cannot know exactly what goes on in an animal's mind, but unfortunately, animals are not terribly altruistic. The hippo was probably trying to ...