While studying a way to more safely and effectively collect snake venom, University of Florida researchers have noticed the venom delivered by an isolated population of Florida cottonmouth snakes may be changing in response to their diet.

The longest set of HARPS measurements ever made has firmly established the nature of the smallest and fastest-orbiting exoplanet known, CoRoT-7b, revealing its mass as five times that of Earth's.

The composition of some of our nation's forests may be quite different 200 to 400 years from today according to a recent study at the University of Illinois. The study found that temperature and photosynthetic active radiation were the two most important variables in predicting what forest landscapes may look like in the future. The uncertainties became very high after the year 2200.

A skeleton, found at one of the most important, but least understood, Roman sites in Britain is puzzling experts from The University of Nottingham.

A rare and surprising archaeological discovery at Tel Dor: A gemstone engraved with the portrait of Alexander the Great was uncovered during excavations by an archaeological team directed by Dr. Ayelet Gilboa of the University of Haifa and Dr. Ilan Sharon of the Hebrew University of Jerusalem.

Physicists at the University of Toronto have discovered that changes in the Earth’s ozone layer due to climate change will reduce the amount of ultraviolet (UV) radiation in northern high latitude regions such as Siberia, Scandinavia and northern Canada. Other regions of the Earth, such as the tropics and Antarctica, will instead face increasing levels of UV radiation.

Researchers are developing technologies that use lasers to create arterial stents and longer-lasting medical implants that could be manufactured 10 times faster and also less expensively than is now possible.

Nickelodeon celebrates its annual Worldwide Day of Play on Saturday, September 26 to inspire children to be more active. From 12 to 3pm, Nickelodeon's TV channels and websites, Nickelodeon, Nicktoons Network, NOGGIN, The N, Nick.com, Noggin.com, Nicktoonsnetwork.com and The-N.com, will shut down so children can play without a television or computer.

Approximately 120-130 million years ago, one of the most significant events in the history of the Earth occurred: the first flowering plants, or angiosperms, arose. In the late 1800s, Darwin referred to their development as an "abominable mystery." To this day, scientists are still challenged by this "mystery" of how angiosperms originated, rapidly diversified, and rose to dominance.

The link between declining CO2 levels in the earth's atmosphere and the formation of the Antarctic ice caps some 34 million years ago has been confirmed for the first time in a major research study.

Monoamine oxidases (MAOs) are two enzymes (MAO-A and MAO-B) which inactivate the so called monoamine transmitter substances serotonin, noradrenalin and dopamine. The brain systems which utilise those transmitters are of great importance for the fine-tuning of personality traits, as well as state-dependent features such as mood, appetite, attention, etc.

An international team of researchers has created the most complete seismic image of the Earth's crust and upper mantle beneath the rugged Himalaya Mountains, in the process discovering some unusual geologic features that may explain how the region has evolved.