On days when ozone levels are high, breathing can be difficult and exercising outdoors is usually discouraged. Now research shows that breathing in the gas year in and year out can lead to chronic and deadly lung disease.

A growing number of scientists who also hold religious beliefs are now speaking out against the growing antagonism that is emerging between scientists and members of the religious community in many parts of the world.

In the rocky desert of Inner Mongolia, an international team of palaeontologists has unearthed a mass grave of young dinosaurs. The 25 birdlike dinosaurs are thought to have died after getting stuck in a mud flat. The scientists say the find provides a

The smallest meat-eating dinosaur yet to be found in North America has been identified from six tiny pelvic bones. Hesperonychus was the size of a small-chicken, and used its rows of serrated teeth to feed on insects, experts say. The bird-like creature

Throughout his first few weeks in office, President Obama has demonstrated a firm commitment to tackling global warming. In fact, he's already instructed the Environmental Protection Agency (EPA) to review California's request to regulate automobile tailp

Baby screams. Onlookers glower. Mom gives in -- even when she's a monkey. Rhesus macaque mothers are about twice as likely to let a howling infant have its way during very public tantrums than during more private moments.

WASHINGTON - A 300-million-year-old fossilized brain has been discovered by researchers studying a type of fish that once lived in what is now Kansas and Oklahoma.

PARIS (AFP) - An asteroid of a similar size to a rock that exploded above Siberia in 1908 with the force of a thousand atomic bombs whizzed close past Earth on Monday, astronomers said on Tuesday.

One of the world's most important remaining ice reserves on Earth remains deceptively cold. As the planet's poles thaw out, global sea level rise looms as one of the most dangerous side effects of global warming

The unusually intact fossilized skull of a giant, bony-toothed seabird that lived up to 10 million years ago was found on Peru's arid southern coast, researchers said Friday.