The oblong rocksnail isn’t extinct, but now lives in only a small section of its former range.
Snails that live on mucus rafts evolved the talent from ancestors who carried their eggs on mucus strings.
Snails whose shells coil counterclockwise have trouble hooking up with snails whose shells twist clockwise, study finds.
When threatened by the scent of crayfish, hermaphroditic snails waited less to reproduce on their own and their offspring appeared to benefit.
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