Scientists to build avian tree of life (Image 2)

An American robin (Turdus migratorius), photographed in Washtenaw, Michigan. Researchers are working to build an evolutionary tree of all bird species using cutting-edge technologies to collect DNA from across the genome. [Image 2 of 3 related images. See

Source: NSF Multimedia Gallery - July 20, 2018 Category: Science Source Type: video