Butterfly Facts – 58 Interesting Facts About ButterfliesButterfly facts for kidsButterflies are insects. Butterflies can vary in size, the largest can be around 12 inches while the smallest can be only half an inch. Some butterfly species lay their eggs on only one type of plant. Caterpillars are not made of bones but they have over 1,000 muscles. Caterpillars eat their own shell after they come out of their shell. Butterflies are cold blooded. Most butterflies are found in tropical rainforests, but they can live at all altitudes and climates. Butterflies soak up their food by their long tube like tongue called proboscis. Butterflies are nearsighted. Butterflies flap their wings at the same time at about 5 beats per second.