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A close-up of the gynandromorph cricket

Rare half-female, half-male cricket leads a complicated life

27 July 2018

An extremely rare cricket with female sex organs but male wings  –  known as a gynandromorph – could tell us more about how sex differences arise


Male peacocks can make females' heads vibrate at a distance

Male peacocks can make females' heads vibrate at a distance

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


Chimp evolution was shaped by sex with their bonobo relatives

Chimp evolution was shaped by sex with their bonobo relatives

24 May 2018

Some chimpanzee populations gained useful DNA from interbreeding with bonobos, and one may even have become more gentle and “bonobo-like” in its brain structure and behaviour


A fossil may rewrite the story of how plants first lived on land

A fossil may rewrite the story of how plants first lived on land

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


Male fruit flies feel pleasure when they ejaculate

Male fruit flies feel pleasure when they ejaculate

19 April 2018

Male insects have been genetically engineered to climax on command, and it seems they get a real buzz out of it – perhaps even a fly orgasm


Palm trees have been spotted changing sex for the first time

Palm trees have been spotted changing sex for the first time

5 April 2018

Four Quindío wax palms in Colombia have changed sex from male to female, which was thought to be impossible for such plants


A very pregnant female ray had to fend off four courting males

A very pregnant female ray had to fend off four courting males

22 March 2018

Giant devil rays have been filmed courting for the first time, and it turns out the males do not even wait for the females to give birth


A male and female brown widow (Latrodectus geometricus)

Daft male spiders prefer females who are more likely to eat them

12 March 2018

Female brown widow spiders become less fertile as they age, and more likely to kill and eat their mates – yet males still prefer them over younger females


Biggest ever family tree shows when cousins stopped having sex

Biggest ever family tree shows when cousins stopped having sex

1 March 2018

A family tree of 13 million people has been built using data from an ancestry website, and it reveals when and why people started avoiding marrying close relations


Advertising campaign for monkeys uses sex to sell brands

Advertising campaign for monkeys uses sex to sell brands

27 February 2018

Everyone knows that in advertising sex sells, and it turns out that sex-themed adverts even work on rhesus macaques


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