Imagine the tree of life. The tip of every branch represents one species, and if you follow any two branches back through time, you'll hit an intersection. If you keep going back in time, you'll ...

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 ...

Scientists Mapped the Evolution of 11,000 Bird Species to Build the Avian Tree of Life By combining data on all known bird species, this tree is the most impressive snapshot yet of one of Earth ...

By combining data on all known bird species, this tree is the most impressive snapshot yet of one of Earth’s most awe-inspiring classes of animal. Scientists Mapped the Evolution of 11,000 Bird ...