The mountain pine beetle, an insect pest, is destroying massive swaths of American lodgepole pine.

Freedom has always been part of the American mythology. The Constitution's Bill of Rights bristles with freedoms. "Freedom of the Seas" was one of

A bizarre relationship between a gecko and a sap-sucking insect has been caught on camera for the first time. The day gecko, which lives in the forests of Madagascar, has been recorded begging a bug for its dinner.

The tail-feather beep of the Anna's hummingbird is an important part of the dive display that seduces females and also serves to drive away rivals or other threatening animals.

The lab rat of the future may have no whiskers and no tail - and might not even be a rat at all.

Researchers believe that the study results will have additional application for controlling flies that threaten animals in confined environments such as poultry houses,dairies and horse stables.

"It's sort of King Tut meets T. Rex," paleontologist Phil Manning of the University of Manchester in Britain said in a telephone interview.

Scientists today announced the discovery of an extraordinarily preserved "dinosaur mummy" with much of its tissues and bones still encased in an uncollapsed envelope of skin. Preliminary studies of the 67-million-year-old hadrosaur, named Dakota, are

Depression affects 16 percent of the population in the United States. Boosting an exercise-related gene in the brain works as a powerful anti-depressant in mice--a finding that could lead to a new anti-depressant drug target.

Europe is considering plans to spend more than £5bn on a string of giant solar power stations along the Mediterranean desert shores of northern Africa and the Middle East.