For the first time, scientists have created a comprehensive evolutionary tree of all known bird species, synthesizing data ...

Who knew that horses and rhinos were on the same branch of the evolutionary tree? Actually ... Eocene Fossils Suggest That the Mammalian Order Perissodactyla Originated in India" include Luke ...

Though paleontologists had found remains of Perissodactyla from as far back as the beginnings of the Eocene epoch (about 56 million years ago), their earlier evolution remained a mystery, says Ken ...

Though paleontologists had found remains of Perissodactyla from as far back as the beginnings of the Eocene epoch, about 56 million years ago, their earlier evolution remained a mystery ...

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 ...

What exactly this creature was puzzled scientists, including the father of evolution ... they're part of a group called Perissodactyla. The animal's lineage and that of modern perissodactyls ...