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27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Featuring the first lunar rover in 40 years, Chang'e-3 is seen as an important milestone on China's quest to send a...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
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ScienceShot: How Tree Frogs Keep Their Feet Sticky
2 July 2011 8:00 pm
Trying to re-stick a piece of tape to a surface after it's become dusty is infuriating. So how do tree frogs pull it off? It turns out the arboreal amphibians, which secrete gluey mucus from pads on their feet, refresh their stickiness with every step they take. Biologists presenting at the Society for Experimental Biology annual conference in Glasgow found that the White's tree frog (Litoria caerulea) self-cleans as it climbs thanks to special channels in its feet that slime away dirt and debris. When the frog moves its limbs forward, the mucus and any accumulated gunk slip through the channels and stay behind while new sticky mucus is secreted in its place. The researchers say these findings could one day inspire such technology as self-cleaning medical bandages and self-renewing adhesives.
See more ScienceShots.