When did animals first come into being? It might have been millions of years earlier than we thought.
In a 120-million-year-old rock in Northeast China, paleontologists made a remarkable find.
The birds do it. The butterflies do it. And now we know that the dragonflies do to it, too: long-distance migration.
This year, the Journal of Parasitology celebrates its 100th anniversary
Why do leaves change colors in fall?
Dendrogramma enigmatica, an organism discovered in the 1980s, may be one of the earliest lifeforms.
Biological research tracks predatory carnivores, who are increasingly veering into North American cities.
Coyotes in New York City? You bet. Read more about carnivores living in urban areas.
The federal Wilderness Act was signed 50 years ago.
Researchers writing in Marine Mammal Science report that California blue whale populations have rebounded from losses inflicted by whaling.