Why do butterflies taste with feet?

Answer: Chemoreceptors on legs

Chemoreceptors on legs ✓ — Correct! Butterflies have chemoreceptors (taste sensors) on their feet—like having taste buds on your toes! When they land on a leaf or flower, they instantly taste it. If it's suitable food for caterpillars, females lay eggs. If it's nectar, they uncoil their proboscis to drink!

Feet absorb liquid nutrients — Wrong. Butterfly feet detect chemicals, they don't absorb nutrients. Butterflies drink nectar through their proboscis (straw-like mouth), not through feet.

Walking spreads flavor around — Wrong. Walking doesn't spread taste—the feet have sensory organs that detect chemical compounds instantly upon contact with surfaces.