bonobo

Bonobo infants find the arrival of a new sibling stressful

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Cortisol levels in bonobo infants jumped fivefold when they got a younger sibling and stayed high for 7 months, suggesting they found it extremely stressful Life 4 March 2022 By Alice Klein A young bonobo and her mother Sean M. Lee/George Washington University Bonobo infants become highly stressed when they get a younger sibling and … Read more

Clitoris evolution: What dolphins reveal about female sex organs

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By Jessica Hamzelou Bottlenose dolphins are “hypersexual creatures” imageBROKER / Alamy Stock Photo Patricia Brennan has forged a controversial career in studying the twist and turns of the evolution of animal genitalia. A biologist based at Mount Holyoke College in South Hadley, Massachusetts, her latest research suggests that bottlenose dolphins have clitorises that have evolved … Read more