Genetics and brain physiology can affect a dog's personality and behavior.

What does the way we treat our pet dogs say about ourselves? Sarah Wilson came up with nine different behavior patterns seen in dog owners.

This video-enhanced lesson uses segments from the NATURE program "Ravens" to explore what scientists can determine about animal intelligence. (Grades 9-12)

Segments from NATURE's "Ravens" demonstrate indicators of animal intelligence, including communication, counting, memory, and basic problem solving.

Experience the bittersweet tale of baby ring-tailed lemurs, including an unusual near-albino infant named Sapphire, learning to survive in their treetop homes.

Interview with John Rubin, producer of "Animals Behaving Badly," Rubin Tarrant Productions, and formerly of National Geographic.

NATURE investigates the sometimes exasperating efforts of people and wild animals to adapt to each other when their worlds collide.