Butterflies can smell and taste using their senses. However, they are not smelling through a nose and tasting through their mouths. Butterflies can smell and taste using their antennae and feet! Butterflies have special parts on their feet that help them to sense what something tastes like. Once they decide if it is good to eat or not, they use a straw-like proboscis to drink nectars and juices. Simply by standing on a leaf, a butterfly can taste if the leaf would be a good spot to lay their eggs. They also use the smell receptors on their antennae to smell a flower or leaf. This allows butterflies to know if a flower has nectar for it to drink. Butterfly antennae are also useful in smelling other butterflies. When it is time to find a mate, the antennae are the part that leads the way to the correct butterfly scent!