Scientists mapped the color shading of a particularly well-preserved Chinese fossil—a Psittacosaurus [sit uh kuh SAWR us]—onto several three-dimensional,...
One of the hallmarks of good science is to formulate a cogent theory based on the physical evidence. For example, if the physical evidence (e.g. a fossilized...
Dragonflies (order Odonata) are perhaps one of the most studied and appreciated insects in the world today. Like the hummingbird, the dragonfly is a master...