Aggression, much like beauty, is in the eye of the beholder, or the victim. This video reviews animals that have been known to be particularly aggressive toward humans, with aggression being defined ...

Evolution doesn't always play by the rules. Meet Asia's most bizarre and extraordinary creatures--animals that defy nature's ...

From thousands of monarch butterflies painting the skies to massive herds of bison on the move, the U.S. is home to some of the most breathtaking animal migrations on Earth. These incredible journeys ...

For pet and lab mice, running wheels are a common feature, often used to encourage exercise. However, some scientists have argued that mice only run on these wheels because they live in cages and that ...