In biology, phylogenetic trees represent the evolutionary history and diversification of species -- the ''family tree'' of Life. Phylogenetic trees not only describe the evolution of a group of ...

Biologists will be able to reconstruct the process of evolution, determine relationships between species and build phylogenetic trees with greater accuracy thanks to a new method for identifying ...

Just as bird watchers may use binoculars to add to their species lists, scientists interested in bird evolution may use computational tools to clarify avian lineages. Indeed, such tools have enabled ...

Play NOVA's Evolution Lab to explore the tree of life and become an expert in phylogenetics—the study of the evolutionary relationships among species. Receive emails about upcoming NOVA programs and ...

Birds are the most diverse land vertebrate on the planet, and now scientists have constructed a complete evolutionary tree of the 11,000 or so known species. This data came from hundreds of studies ...

Rethinking the termite family tree When researchers construct a family tree, or phylogeny, they can do so using different genes. By looking at the differences in a gene between species, they can ...

Why do you have five fingers? Why not ten, or twenty, or one? Why do so many animals have five fingers? Five seems to be the perfect number for most hands. Oddly, the first vertebrates to come onto ...

There are extinctions, and then there’s the “Great Dying.” That was the Permian-Triassic extinction around 250 million years ago, which wiped out nearly all life on Earth. Scientists have been ...

"This book arose proximally out of a session at the Human Behaviour and Evolution Society annual meeting that was held at University College London in 2001"--Preface. STRI copy purchased with funds ...

In biology, phylogenetic trees represent the evolutionary history and diversification of species - the "family tree" of Life. Phylogenetic trees not only describe the evolution of a group of organisms ...