In hydrothermal vent fields, a small snail evolved an iron-reinforced shell. Here’s how it challenges assumptions about ...

If you look at a snail's shell, the chances are it will coil to the right. But, occasionally, you might find an unlucky one that twists in the opposite direction - as fans of Jeremy the lefty snail ...

Snails whose shells coil counterclockwise have trouble hooking up with snails whose shells twist clockwise since their bodies don't line up properly. Turns out, the contrary snails trade awkward sex ...