The majority of young, inexperienced Western garter snakes born in the laboratory from mothers captured in coastal areas of California readily eat pieces of slug. What are plausible proximate explanations for this behavior?
a) Coastal snakes that readily eat banana slugs gain most of their calories from this prey species.
b) Coastal snakes can detect odor molecules produced by banana slugs.
c) Coastal snakes have a genetically acquired taste for banana slugs.