Walks of a <i>Microtus arvalis</i> at the end of winter in Interlaken, Switzerland.
<a href="//commons.wikimedia.org/wiki/User:Hannibal%27s_back" title="User:Hannibal's back">Manuel R.</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>