Archive: 03/08/2012

Barking up the wrong tree

Besides attacking North America’s lodgepole pines, a combination of climate change and the mountain pine beetle are threatening to wipe out the remaining population of Alberta’s whitebark pine—a ...

Mar 08, 2012 not rated yet 0

Why do plant roots grow down and not up?

(PhysOrg.com) -- It is essential for roots to grow down so they can explore the soil and maximise their water uptake. But how they know that is a question that has fascinated scientists since Darwin. Now scientists ...

Mar 08, 2012 3.2 / 5 (9) 7 | with audio podcast