"Earth science" is a broad term that encompasses four main branches of study, each of which is further broken down into more specialized fields. Geology is the study of the substances that make up ...

Entire branches of Earth’s ‘Tree of Life’ going extinct, scientists warn Research suggests extinction rate has been accelerated by human activities, particularly in the last 200 years ...

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 ...