Defence tactics: These violent snails whack their predators

Defence tactics: These violent snails whack their predators

Unusually aggressive snail behaviour has been observed in Japan and the far east of Russia. Two species have been found that don’t retreat into their shell when they sense a predator, but instead swing their shell at it to make it go away. Researchers in Japan and Russia found that these active defence methods in the two species evolved independently of each other. Nov 17, 2016