Science dates old dogs with new tricks

Feb 6, 2015

Science dates old dogs with new tricks

Man’s best friend has not been around for nearly as long as thought, according to a study released Thursday that brings the emergence of modern dogs forward by some 15,000 years. The finding follows the reclassification of two fossil skulls, one more than 30,000 ...

Feb 5, 2015

Stay or stray? First data on sexual types found

Scientists have amassed the first evidence to back theories that people fall into two broad sexual categories: faithful or promiscuous. Why humans seem to be an exception among mammals on the matter of sexual relationships has long been a puzzle. Other mammalian species are ...

NASA finds more Earth-like planets outside solar system

Jan 7, 2015

NASA finds more Earth-like planets outside solar system

More planets that are near twins to Earth have been found outside our solar system — tantalizing worlds that could host extraterrestrial life. Astronomers announced Tuesday that, depending on definitions, they have confirmed three or four more planets that are about the same size ...

DNA shows kinship between birds of a feather

Dec 12, 2014

DNA shows kinship between birds of a feather

Scientists have unveiled the most comprehensive bird “family tree” ever devised, using genetic data from 48 species to trace how modern bird lineages arose and flourished after the mass extinction that killed off the dinosaurs. The work by researchers from 20 countries helps clarify ...

Nov 28, 2014

Courtship 'frill' helps identify new dinosaur species

A U.S. scientist has identified fossilized bones in a Canadian museum as belonging to a new species of dinosaur, saying researchers had only “scratched the surface” in terms of dinosaur diversity. Nick Longrich, a paleontologist who teaches at the University of Bath in Britain, ...