Durham, NC – Solitary snails in search of a mate put off parenthood as long as possible in the hopes that a partner will appear. But when Physa acuta snails smell predators, they don't wait as long ...

Did you have an aquarium when you were growing up – or do you have one now? Did you have snails in it? In nature, our rivers, creeks and lakes are filled with freshwater snails … or were until ...

Mixed-mating animals self-fertilize a proportion of their offspring. Outcrossing rate may covary with the ecological and historical factors affecting the population. Theory predicts that outcrossing ...