NEW YORK -- From Christopher Columbus to Marco Polo, human explorers throughout history have traveled far distances. But some of the world's greatest explorers are in the animal kingdom. NatGeo's new ...

ABC News' Danny New reports on Turtle Back Zoo, where animal lovers can watch real-life veterinary checkups up close.

Fiona the hippo was born prematurely, but now she has grown into a happy and playful internet sensation. The staff at Cincinnati Zoo and Botanical Garden have been caring for Fiona since she was born ...