Kids in the Creek From the banks of the creek, and in its more shallow reaches, students explore the parameters of a healthy fish habitat. They will determine where fish like to live, what they prefer to eat, and what insects are indicator species. Many aquatic insects look significantly different in their early stages of development when compared to adulthood.
Aquatic insects undergo simple metamorphosis or complete metamorphosis.
Nymphs may begin to resemble adults but they still may vary considerably from their adult form. The larva grows through several stages and then changes into a pupa. Pupae are usually encased in protective cover for their next stage of growth. From the pupae emerge the soft-body, often pale in color, adults. They differ remarkably in appearance from their earlier forms but are not yet completely formed.