How many legs do monarchs have?

Adult monarchs sometimes look like they have only 4 legs, and caterpillars look like they have a lot more. However, all insects, including monarchs, actually have 6 legs. Adult monarchs hold their front two legs close up to their bodies most of the time and can even use these two front legs to taste-test milkweed before laying eggs on it! Monarch caterpillars have 6 true legs (3 sets) and 10 prolegs or false legs (5 sets).