Yawn next to your dog, and it may do the same. Though it seems simple, this contagious behavior is actually quite remarkable: Only a few animals do it, and only dogs cross the species barrier. Now a ...

Contagious yawning refers to the tendency of individuals to yawn after seeing, hearing, or even thinking about someone else yawning. About 40% to 60% of people exhibit contagious yawning when exposed ...

There are six different species of baboons. Scientists have found that certain species of baboons are more aggressive than others. However, when push comes to shove, every species of baboon can be ...