Over the last half decade, it has become increasingly clear that the normal gastrointestinal（胃肠的） (GI) bacteria play a variety of very important roles...
Like sheets of paper marked with perforated（穿孔的） lines, gecko（壁虎） tails have unique structural marks that help them sever their tails to make a quick ...
A new mosasaur species discovered in Hungary is the first known example of this group of scaled reptiles（爬行动物） to have lived in freshwater river envir...
Men whacked（重击） punching bags for a University of Utah study that suggests human hands evolved not only for the manual dexterity（手灵巧度） needed to use t...
Regardless of the cause, stress sets in motion certain automatic changes in the body that are designed to give it a quick burst of energy. The pattern...
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems ...
Most people are aware that outdoor air pollution can damage their health, but many do not know that indoor air pollution can also have significant hea...
Researchers at the University of Wisconsin Carbone Cancer Center have discovered a new form of cell division in human cells. They believe it serves as...
Just 20 years ago, the soils of the Amazon basin were thought unsuitable for large-scale agriculture, but then industrial agriculture -- and the abili...
Finding ways to diagnose cancer earlier could greatly improve the chances of survival for many patients. One way to do this is to look for specific pr...