Here's another article on how gecko's feet cling and not retain detritus:
http://www.chemistry.org/portal/a/c/s/1/feature_pro.html?id=c373e901704928148f6a17245d830100
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Terri
4:8:5 crested geckos: Popcorn, Goldfish, Harley, Bear, Big Red, Olive, Smudge, Blackie, Belle, Brilliant, Tina, Brick, Tony, Kermit, WildFire, WildSpatter-Spots-to-Spare & Randi(y)