straggler – n. a person or animal that moves slower than others and becomes separated from them
habitat – n. the area where a plant, animal or insect normally lives
pesticide – n. a product that kills animals or insects that damage crops
milkweed – n. a type of North American plant that has white juice
caterpillar – n. a small creature that is like a worm with many legs and that changes to become a butterfly or moth