Heliocidaris erythogramma

Engineers show how tiny cell proteins generate force to 'walk' Nov 25, 2008 Kinesin, a small motor protein found in cells, walks stepwise on microtubules to perform cellular processes. In each step, a power stroke is generated when two mechanical elements (neck linker, in red, and cover strand, in ...

New penguin species found in New Zealand Nov 19, 2008 Mounted specimen of Yellow-eyed Penguin. Photos courtesy of Canterbury Museum.

Dry spells spelled trouble in ancient China: Weakening of summer monsoons to blame Nov 06, 2008 Asian monsoons, Northern Hemisphere temperatures and alpine glacier data across 1,800 years are compared. Credit: Zina Deretsky, National Science Foundation

New type of fuel in Patagonia fungus Nov 04, 2008 Colorized environmental scanning electron microscope photo of Gliocladium roseum, an endophtic fungus that produces myco-diesel hydrocarbons. (Photo courtesy of Gary Strobel.)

Inland ants prefer salty snacks to sweet Oct 27, 2008 One way to explore ant preferences for sugar and salt is to place a bit of cotton soaked in either solution (in this case, sodium chloride or salt) in a micro-centrifuge vial. Luckily, ants can't read. (Stephen P. Yanoviak/ ...