Stephen Blair Hedges is the director of the Center for Biodiversity at Temple University where he researches the tree of life, or universal tree of life which is a model and research tool used to explore the evolution of life and describe the relationships between organisms, both living and extinct, as described in a famous passage in Charles Darwin's On the Origin of Species (1859).
Stephen Blair Hedges is the director of the Center for Biodiversity at Temple University where he researches the tree of life, or universal tree of life which is a model and research tool used to explore the evolution of life and describe the relationships between organisms, both living and extinct, as described in a famous passage in Charles Darwin's On the Origin of Species (1859).