Some Land Snails Hibernate Through Winter

A snail’s winter dormancy is more than a one-night nap. In temperate climates, some land species, including the Roman snail, can spend the cold season in hibernation. Laboratory observations of *Helix pomatia* documented entry into hibernation in autumn and waking in spring; separate experiments examined its physiology after a three-month period. Duration depends on species, temperature, and humidity, so this is not a rule for every snail or every winter. The illustration is AI-generated.