LOUISVILLE. HERE’S CARRIE WITH MORE. AT THE CORNER OF SOUTH SIXTH STREET AND PARK AVENUE SITS A REALLY INTERESTING LOOKING TREE. IT ATTRACTS VISITORS FROM ALL OVER THE WORLD AND EVEN IS A STOP ON THE ...

Trees tell us stories. Scientists count their rings to figure out how old they are and when those years add up, it can be a sign of nature's endurance in the face of change. Trees that have stood tall ...

All species on Earth, both living and extinct, are related. We know this because of a biological tool called the tree of life. This "tree" takes the form of a diagram that maps the relationships ...

We all know what tree line is in Colorado: the point above which trees don’t grow. But what determines tree line: Cold? Soil conditions? Precipitation? And is tree line different in various parts of ...