His best-known work, however, was on insect development, demonstrating that the various phases during the life of an insect--egg, larva, pupa, and adult--are different forms of the same animal.
His best-known work was on insect development. This was however. The various phases during the life of an insect--egg, larva, pupa, and adult--are different forms of the same animal. His best-known work was demonstrating this. This was however.