The changes in color are as light as the lightest species and as dark as the darkest species in the entire genus--and this genus has been evolving for millions of years. Disclaimer: AAAS and ...

Ancient lice ate dinosaur feathers, similar to how modern-day lice eat bird feathers, according to a study published yesterday (December 10) in Nature Communications. Researchers led by Taiping Gao ...

Figure 1. Fossilized nits of chewing lice, tightly affixed to feathers of an enantiornithine bird, entombed in mid-Cretaceous amber from northern Myanmar. (a) Isolated barbs and regularly arranged ...