Geckos, which are found in warm regions of the world, are extremely capable of climbing up steep, smooth surfaces. To do so, they employ an adhesive system; a key evolutionary innovation that facilitates climbing vertically, and even in inverted positions. On the underside of their toes are "setae," millions of very fine hair-like structures, which provide increased surface area and close contact between the foot and the surface on which it rests. This ...
via Medindia Health News
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