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Identify topic sentence, supporting details, and concluding sentence in the following paragraph, and explain whether or not the paragraph is effective. Why or why not?
Butterflies are one of the most beautiful and interesting creatures on earth. Their attractive, brilliant colors catch interest immediately. They have wings of varying shapes and sizes, and some even appear to have "eyes" on them! Some butterflies are cleverly camouflaged with colors that assist them in blending with the plant life in their environments. The delicate physical structure of the butterfly (along with hair-like legs and antennae) adds to its gentle beauty. Some of these curious insects vary distinctly in size, with the largest-known wing span at four inches, and the smallest measured from wing tip to tip at one-half inch. Without these glorious, artful creations darting about in the world, our lives would indeed be much more drab and boring.