Genomic study reveals signs of TB adaptation in ancient Andeans

People have inhabited the Andes mountains of South America for more than 9,000 years, adapting to the scarce oxygen available at high altitudes, along with cold temperatures and intense ultraviolet radiation. A new genomic ...

Why dogs are the new darlings of cognitive science

This will be his earliest memory. Red light, morning light. High ceiling canted overhead. Lazy click of toenails on wood. Between the honey-colored slats of the crib a whiskery muzzle slides forward until its cheeks pull ...

Pollinator extinctions alter structure of ecological networks

The absence of a single dominant bumblebee species from an ecosystem disrupts foraging patterns among a broad range of remaining pollinators in the system—from other bees to butterflies, beetles and more, field experiments ...

Can Whales and Dolphins Adapt to Oily Gulf?

(PhysOrg.com) -- The dead sperm whale found this week in the Gulf of Mexico puts the spotlight on how the BP oil spill will affect this endangered mammal, along with other cetaceans, such as dolphins, that must break the ...

Climate change and the physics of falling icebergs

For thousands of years, the massive glaciers of Earth's polar regions have remained relatively stable, the ice locked into mountainous shapes that ebbed in warmer months but gained back their bulk in winter. In recent decades, ...

page 8 from 27