It seems difficult to believe that spring is almost here. Christmas doesn’t seem all that long ago, but the days are ...

And by comparing their DNA, scientists can trace how different groups of humans migrated across the world. For example, a study found that European mites genetically diverged from East Asian mites ...

On a recent drive back from Denver International Airport, I saw a coyote running through a prairie-dog town. It was the fifth coyote I saw that morning between Estes Park and Denver, but this one ...