Dogs can shake 70% of the water out of their coat in four seconds – this is because their backbone can move around 30 degrees in either direction, and their skin is so loose that it can move three times faster than their backbone. Other mammals also do this, and the smaller they are the faster it is – mice shake at 30 times per second. This allows them to dry faster and keep warm.

Shaking dog

Source: Georgia Institute of Technology

There is a fantastic video in the article in The Atlantic, and lots more information on the laboratory website at Georgia Institute of Technology.

Source: Georgia Institute of Technology

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