The kind of ants you see in your kitchen probably have a few thousand of these "smell cells," and the cells are tuned to different classes of odors.

Larry Mayer, referring to the United Nation’s Law of the Sea, a 27-year-old treaty that allows countries to extend their maritime boundaries - if they back their claim requests with science. To support the U.S. claim, Mayer and his team have mapped more than a million square kilometers of seafloor since 2003.

Birthstones are special stones associated with each month of the year. They have a place in history, mythology and science. Check out the special story of your birthstone.

Astronomers use computers to study stars in the Milky Way and in a star cluster called Omega Centauri to learn more about the origin of copper.

Parrotfish an anemonefish can live for a while as male fish or female - but different hormones kick in and cause it to change.

Mylea Bayless said bats might face extinction due to a fungus called 'white nose syndrome.'

Jean Bahr suggests that water drawn from private wells be tested for arsenic and other potential toxic substances, even in the U.S.

John Goff said the most erosion from hurricane Ike occurred when the hurricane subsided, as water rushed out of an overflowing Galveston Bay, back into the Gulf of Mexico.

Is it possible to see an endless sunset? The answer depends on the speed of Earth's rotation and your precise location on the globe.

Steve Running believes while Earth's plants might slow down global warming by removing CO2 from the air, he doesn't think plants offer a long-term solution.