Genetic information from dozens of individuals living 700 to 10,000 years ago reveals connections between Clovis and Native Americans and South Americans.

Take a break from the bench to puzzle and peruse.

Lincoln Brower, an American entomologist famous for his work to conserve the monarch populations of Mexico and the US, has passed away at age 86.

Ornithologists tagged 27 juvenile birds to track the way they use updrafts of air heated by the sun to migrate over long distances.

A study of 686 fish and invertebrates predicts that some animals will have to shift more than 1,000 kilometers to stay within tolerable temperatures.

Crowds of zooplankton swimming upward generate large downward jets of water, a study finds.

In an unusual evolutionary twist, local stick spiders have come up with an almost identical repertoire of color morphs in multiple locations.

The animal pictures and hand stencils were made in caves in Spain thousands of years before Homo sapiens arrived in Europe.

Studies suggest not all critters fare well in extreme weather, though some thrive.