Archive: 04/5/2010

Eating like a bird helps forests grow

Lions, tigers and bears top the ecological pyramid -- the diagram of the food chain that every school child knows. They eat smaller animals, feeding on energy that flows up from the base where plants convert ...

Apr 05, 2010 4.6 / 5 (9) 0 | with audio podcast

Form or function? Evolution takes different paths

Biologists long have known that both the appearance of organisms and their inner workings are shaped by evolution. But do the same genetic mechanisms underlie changes in form and function? A new study by scientists at the ...

Apr 05, 2010 4.7 / 5 (7) 3 | with audio podcast

Tracking down rust

(PhysOrg.com) -- Damage to concrete bridges caused by rust can have fatal consequences, at worst leading to a total collapse. Now, researchers have developed an early-warning system for rust. Sensor-transponders ...

Apr 05, 2010 4 / 5 (1) 0