Esther Carlitz is a postdoctoral researcher in Ecological Endocrinology. She investigates how endocrine states—measured via hormones in hair—reflect the complexity of natural observations in wild mammals. Her research currently focuses on testosterone and androgenization: while high androgenization supports male fitness, it may harm female fitness. She questions this long-standing belief and explores related evolutionary phenomena.

In addition, she works on animal welfare monitoring and conservation, aiming to use hormone measures in hair to track and improve the welfare of captive animals.