Menu Close

Judging fertility from a familiar face

A female’s facial features can change depending on her fertility cycle. American research suggests that when male rhesus monkeys are familiar with the female, they can choose more accurately when she is at her most fertile, compared with unfamiliar females.

Read more at PRSB

Want to write?

Write an article and join a growing community of more than 181,000 academics and researchers from 4,921 institutions.

Register now