Butterflies are one of the beautiful insects, with colourful wings that are beautifully patterned. There are about 24,000 species of butterflies. The moths are even more numerous, about 140,000 species. Butterflies are generally not very large, ranging in size from tiny 1/8 to almost 12 inches! A butterfly lays eggs and the eggs hatch into caterpillars. The butterfly first turns into a pupa and after fully grown up, becomes a butter fly. When a butterfly holds its wings open, it gathers warmth from sun, which gives it the energy to fly. When butterfly’s shadow becomes small and enemies are less likely to spot it. The patterns on wings of butterflies help them identify their kids. Their wings patterns help them in order ways too, such as soaking up heat and frighten and predators. The vision of butterflies and moths changes radically during their different stages of life. Caterpillars can only differentiate dark from light; but cannot from an image. Butterflies and moths have compound eyes and simple eyes. They can even see ultraviolet rays which are invisible to us. Some butterflies can taste with their feet- they can taste the sugar in the nectar, letting the butterfly know if some thing is good to eat or not. Some female also taste to find out whether the leaf they on is good to lay eggs on to be their caterpillars food or not.