Coiling Snail

A new species of land snail, very small, is unique, having four separate axis in its coiling configuration. (News source.)

Tree Snail Mystery

Biologists have been wondering how a Tahitian tree snail, Partula hyalina, managed (historically) to reach two distant Polynesian islands (and not found on closer islands), and why the migrants are all white even though the snails on Tahiti are multicolored. Turns out the ancient Polynesians had a thing for white shells, so the snails were probably taken deliberately to the other islands for rearing. (News source.)