4 October 2022
The covid-19 pandemic has been linked to a decline in the proportion of male babies being born, in line with previous findings that fewer boys are born after population-wide stressful events
19 February 2020
As the world gets warmer, animals whose sex is determined by temperature are finding cool ways to control their own fate. But can they adapt in time?
11 December 2019
If only the fittest survive, why do good deeds for no return? The enduring mystery of altruism goes to the heart of how evolution does – and doesn't – work
7 January 2019
Across a wide range of species, from mice to fish, a common set of genetic changes appear to be linked to monogamous behaviour
30 October 2018
Over 90 per cent of orangutans survive childhood long enough to have their first baby, a feat human societies only achieved in the 1900s
16 October 2018
The prettier the bird, the worse it sings. A study of over 500 species has revealed that birds evolve to attract mates in one of two ways, and don’t combine them
18 June 2018
Peahens have fan-shaped crests on their heads, and it seems males can make these crests resonate by making a specific noise with their tails
30 May 2018
From helping us conquer the world to curing cancer, here are nine reasons why the placenta deserves our appreciation
18 May 2018
When female bonobos went into labour, other females gathered around to keep them safe, swatting away flies and even seemingly trying to catch the baby as it emerged
30 April 2018
A plant fossil that lay unnoticed for a century is unexpectedly large for something so old, and it could upend our ideas about the evolution of land plants
