Sid Perkins' Articles
- NewsThe impressions near Isona, Spain, long thought to be fossilized dinosaur footprints may actually record the feeding behavior of stingrays.
- NewsResearchers monitoring small ground motions along faults in Southern California ended up detecting an altogether different phenomenon: the rise and fall of the ground as local governments pump billions of gallons of water into and out of the region's aquifers.
- NewsBy the end of this century, the world's hottest desert will be even hotter, drier, and smaller than it is now, according to an international team of climate modelers.
- NewsBetter measurements of one of the rates of radioactive decay used to date extremely old rocks open up the possibility that Earth may have had a crust as many as 200 million years earlier than previously thought.
- NewsWhen a set of instruments monitoring an underwater volcano got trapped in an eruption in early 1998, the scientists who had deployed the sensors ended up with more data than they bargained for.
- FeaturePaleontologists engaged in a contentious debate about the origins of feathers often reach interpretations that are poles apart, and they defend their views with fervor.
- NewsNew genetic analyses of tropical marine microorganisms hint that some species are converting significant amounts of atmospheric nitrogen into nutrients, helping to fortify the base of the ocean's food pyramid.
- NewsA new analysis of fossils and living animals suggests that most dinosaurs' nostrils occurred at locations toward the tip of their snout rather than farther up on their face, a concept that may change scientists' views of the animals' physiology and behavior.
- NewsMites fossilized in cave formations in the American Southwest show that at times during the past 3,200 years the climate there was much wetter and cooler.
- NewsThe above-average number and strength of hurricanes in the North Atlantic during the past 6 years may signal the beginning of a threatening weather trend for the United States, the Caribbean, and Central America.