The evolving anatomy of the human hand gave humans great dexterity and fine motor skills. With these advances came the ability to make stone tools and primitive knives. Anthropologists are now studying how our ancestors learned to make tools, and how these tools shaped our bodies.

Since the days of Reefer Madness, scientists have sought to understand the complicated connection between marijuana and psychosis

Is this battery the one? Toshiba’s Super-Charge Ion Batteries, which reportedly lose hardly any capacity after thousands of charges, could be coming to cars next year.

An updated edition of a mental health bible for doctors may include diagnoses for "disorders" such as toddler tantrums and binge eating, experts say, and could mean that soon no-one will be classed as normal.

Climate change has researchers looking for what they call "hidden habitats," where they can gather critical data on some of America's most endangered native plants and insects. One good place to look: graveyards.

Not only was the past decade the warmest on record, but climate indicators being tracked globally are worsening, scientists reported Wednesday in their annual "State of the Climate."

The oil spill in Michigan, though small compared to the Deepwater Horizon, raises questions about the country's network of oil and gas pipelines.

Dread forcing your toddler to part with the pacifier? You're not the only one thinking of calling in the Binky Fairy. A new study indicates that 80% of parents lie to their children to try to influence their emotions or behavior

Rabbits implanted with artificial bones re-grew their own joints, complete with cartilage

According to law enforcement officials, intentionally altering or mutilating the fingertips is a drastic -- not to mention painful -- way for criminals to avoid being linked to their arrest record. And the number of criminal suspects engaging in the practice seems to be growing.

US patients spend tens of thousands of dollars travelling to foreign stem cell clinics for treatments that aren't available in the US. But scientists say some of these clinics are scams, selling unproven, worthless treatments to desperate people with incurable diseases.

Massive earthquakes that struck the town of New Madrid, Mo., in 1811 can be traced to the actions of the mighty Mississippi River thousands of years earlier, a new study in the journal Nature suggests.

Some dogs may look like their owners, but all dogs imitate their human companions.

A Bristol professor has received a grant of £25,000 from Catholic parishioners to help his work into 'ethical stem cell research'.

The human foot has changed shape in the past few million years, springing an arch that enabled us to run and walk more proficiently than our ape-like ancestors who grasped branches and swung from the trees. Now, researchers are trying to determine when that change took place.