Snails strive to reach the top of fence posts at Kadina, South Australia. The species is not the common white snail, <i>Cernuella virgata</i>, said to be a pest in the region  (<a rel="nofollow" class="external autonumber" href="http://www.dpiw.tas.gov.au/inter.nsf/Attachments/LBUN-74L3NM/%24FILE/white%20snails%20C%20virgata%20Fact%20Sheet.pdf">[1]</a>, 
but is in fact another invasive species, <i>Theba pisana</i>.
<a href="//commons.wikimedia.org/wiki/User:Vmenkov" title="User:Vmenkov">Vmenkov</a>
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