Putting a New Face on Animal Testing

Mounting evidence suggests that the differences between male and female brain structure may be more heavily influenced by environment than previously thought.

Germ cells, the cells that compose eggs and sperm, could provide insight into the earliest stages of human development, and maybe even prevent infertility, birth defects and genetic diseases.

A Danish report on the level of contact that 2-year-old children in the developed world have with feminizing chemicals has been met with shock and concern by some, and frustration by those that say this is a new take on old news.

In many U.S. states, the DNA of those arrested but not convicted is held indefinitely. In Britain, however, the Home Office dropped a DNA database proposal due to strong public opposition and a European court ruling.

An Oxford University study has found that practicing a task such as juggling can alter the structure of the brain, indicating that the plasticity of the brain is greater than previously believed.

Parents who demand honesty from their children lie just as frequently as parents who don’t, report studies from the University of Toronto and the University of California, San Diego.

Early this morning, the Centaur rocket, followed by the LCROSS craft, collided with the moon in an attempt to stir up a plume of dust that scientists hope will reveal deposits of ice on the moon.

A recent study suggests there may be a link between prenatal exposure to the chemical and increased aggression in little girls, but many find the association to be unfounded.

The number of microorganisms in Sydney Harbor tripled in the days following the dust storm. Phytoplankton is a key part of the ocean ecosystem, but too much of it can have dire consequences.

Everyone has gene NRG1, but in many breast cancer cells the gene is “broken.” How will the newfound link between the gene and cancer change the future of medicine?

Based on the discovery of ancient coin hoards, two scientists believe the population of ancient Rome may have been smaller than previously suggested, an issue that is widely debated.

Tonight, NOVA will broadcast “Darwin’s Darkest Hour,” a docudrama that examines Charles Darwin’s struggle over whether to publish his theory of evolution, knowing it would anger the church and threaten his marriage.

Gain a better understanding of the Nobel prize-winning discovery that will aid in the development of new cancer therapies.

“Ardi,” a 4.4 million-year-old early human fossil, may prove that a “missing link” between humans and chimps does not exist, and that both species evolved substantially from a common ancestor.

An NFL-commissioned study found that retired players suffer from dementia and other memory-related diseases at many times the normal rate. The findings support prior independent research that the NFL has tried to discredit.

The growing number of deformed frogs in northern California is caused by factors similar to those responsible for the rapid decline of frog populations and other amphibians worldwide.

A clinical trial found that an experimental HIV vaccine moderately reduced the risk of infection. It is the first successful large clinical trial of an HIV vaccine.

Three separate spacecraft have found proof that the moon’s surface holds water molecules, a discovery that will likely encourage exploration of the moon and beyond.