Animal reproduction, Evolution, Mollusks, Animal populations, Ecology, Size
Adaptation, Studies, Selection, Experiments, Behavior, Biological - physiology, Biological - genetics, Competition, Mollusks, Animal - physiology, Genetic - genetics, Fishes - physiology, growth rate, Costs, Snails - anatomy & histology, Snails - physiology, Genetic - physiology, Genetic Fitness - physiology, Snails - genetics, Escape Reaction - physiology