100 Year-old tortoise and baby hippo have developed a mother-son relationship. Who do you think needs this relationship more?

A-less-than-a-year-old baby hippopotamus that survived the tsunami has adopted a century old male tortoise. The traumatized hippo who had lost its mother had to look for a surrogate mother.

"The hippo follows the tortoise exactly the way it followed its mother. somebody approaches the tortoise, the hippo becomes aggressive, as if protecting its biological mother", explains ecologist Paula Kahumbu, and adds: "The tortoise seems to be very happy with being a mother".