(1) Negative associations between body size and population density are well known in diverse organisms, including land snails. (2) Much work on this phenomenon has been restricted to single-species ...

Black turban snails are small marine snails that make tasty prey for crabs. Failed crab attacks leave scars on a snail’s shell. By analyzing the rate of scarring and the size of the snail when it was ...

Biologists have discovered that the shell lengths of snails in the northwest Atlantic Ocean -- an important member of the Atlantic food chain -- have increased by 22.6 percent over the past century. A ...