Snails can hide in their shells for months or even years, slowing metabolism and sealing in moisture to survive harsh ...

Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

Hermit crabs are small crabs that carry shells on their backs, both for a home and for safety. But with shells being harder to find year after year, hermit crabs have had to spend more time in shells ...