Abstract
Comparative endocrinology has traditionally focused on studies of the evolution of endocrine systems, regulation of hormone actions in animals, development of model systems, and the role of the environment in controlling hormone functions related to major life-history events. Comparative endocrinology also has made important contributions to basic research and clinical endocrinology. In recent years there has been a shift to a focus on anthropogenic chemical factors and their alteration of major life history events through endocrine disruption. During the 21st century, environmental comparative endocrinologists must play an important role in the identification and assessment of endocrine disruption on vertebrate and invertebrate animals and their environment as well as in monitoring remediation. All comparative biologists are encouraged to communicate their understanding of threats to biological systems to non-scientists to facilitate their understanding of the human impacts of various kinds of pollution and habitat destruction on wildlife and ecosystems as well as their long-term consequences.
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