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 ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Trees depicted in ...
Where there’s a tree, there’s usually a forest. But not always. A biologist describes some of the loneliest trees on planet Earth. When we think about isolation in nature, we usually picture islands ...
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