National Geographic's "Animal Genius" takes you beneath the skin, feathers, fur and scales uncovering the inner brilliance of the animal kingdom. From brainiacs like dogs to surprising savants like pigeons and pigs, we reveal cutting edge experiments now underway, forcing humans to re-think who is the smartest animal on earth. Amazing research tests intelligence in surprising ways, showing off different animals' brainpower, sensory systems, problem solving abilities and human-like emotions. Join National Geographic filmmakers as they uncover the secret genius and evolutionary brilliance that allow fascinating creatures to flourish in barnyards, woodlands, and cities across the planet. The labor and delivery of puppies is shown.

Originally released by National Geographic, 2008. Streaming video file encoded with permission for digital streaming by Infobase on April 07, 2015.

Mable (6:56); --The Farm Fox Experiment (2:01); -- Max Planck Institute for Evolutionary Anthropology (5:46); -- Canine Assistance (8:41); -- Fast Mapping (6:31); -- Tail Wagging (2:35); -- Dogs' Sense of Smell (9:29); -- Donny the Doberman (8:01);.