Newly discovered feathers were crucial to how Archaeopteryx was able to fly. Archaeopteryx is the fossil that helped confirm ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Systematic review of published population based surveys to examine the relationship between primary open angle glaucoma (POAG) prevalence and demographic factors. A literature search identified ...

Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China CAS Center for ...

Primary elections will take place Tuesday, May 20. Here’s what you should know beforehand, from voter deadlines to who’s on the ballot in Philadelphia and statewide. By Maria Pulcinella Updated May.

This 150-million-year-old fossil is rewriting the story of how flight began.

"Archaeopteryx is not the first dinosaur with feathers, nor is it the first dinosaur with wings. However, we think it is the ...

Scans of the most well-preserved fossil of a prehistoric flying reptile with intact feathers have revealed how the first ...

If necessary, seek the support of the teenager’s friends in persuading them to accept treatment. Paediatric primary survey positive patients fall into one of two groups. Those who are seriously ill ...

Most modern birds solved this issue by evolving shorter appendages to accompany their tertial feathers. But even though Archaeopteryx possessed those long arm bones, it also had proportionately sized ...

Archaeopteryx is the fossil that clearly demonstrated Darwin's views. It's the oldest known fossil bird, and it helps show that all birds -- including the ones alive today -- emerged from dinosaurs.

Secondary metabolites are a reliable and very important source of medicinal compounds. While these molecules have been mined extensively, genome sequencing has suggested that there is a great deal ...