Saturday, 28 September 2013

Get a Grip: How Frogs Hold on in Flowing Water

Torrent frogs have an amazing ability to climb in wet environments near waterfalls, where ordinary tree frogs would be washed away.

Researchers compared the gripping ability of torrent frogs, a class of frogs that live in fast-flowing mountain or hill streams, to that of tree frogs, and found that torrent frogs were much better at gripping wet, steep and rough surfaces.The frogs' sticky secret, the researchers found, involves hugging wet and rough surfaces with their toes, belly and thighs.

"Torrent frogs adhere to very wet and rough surfaces by attaching not only their specialized toe pads (like many tree frogs do), but also by using their belly and ventral (inner) thigh skin," study researcher Thomas Endlein, of the University of Glasgow in Scotland, wrote in a statement.

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