Hormones in mammalian evolution.

J Howard

PubMed · 11445999

Hormones in mammalian evolution.

Abstract

Animals that produced increased levels of prolactin and dehydroepiandrosterone (DHEA) survived the period of mass extinctions at the end of the Cretaceous period. DHEA increases thermogenesis and supported existence through the extended episode of cold and dark. Further increases in DHEA and prolactin produced continual physiological and anatomical changes which eventually produced all of the characteristics of mammals.

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Animals Biological Evolution Hormones Mammals Journal Article

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J Howard. Hormones in mammalian evolution.. https://pubmed.ncbi.nlm.nih.gov/11445999/

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