Scientists have long debated whether to attribute differences in male and female behaviour to the social environments in which we are raised or whether our brains are different too. We do know that people who display more androgynous psychological behaviours often tend to experience better mental health. This group of scientists suggests the same could apply to our brains. Androgyny, it seems, pays off on a neurological level.

It’s a century since British readers were first introduced to Hercule Poirot — a portly, pompous and frankly quite odd Belgian detective. And even today they can’t get enough of him. Here we investigate the techniques Agatha Christie deployed to make this unusual character so appealing to her audience.

In his first days at the White House, Joe Biden has moved rapidly to revoke some of the key decisions that placed Donald Trump on an antagonistic footing with international partners, bringing the US back into the Paris Climate Agreement, ending the so-called “Muslim ban” and downing tools at that infamous wall. What else can we expect from the new administration? It all starts on the home front with pandemic control.

Also this week: starfish evolution, a lockdown soundscape and the best way to cook bacon.

Have a nice weekend.

Laura Hood

Politics Editor, Assistant Editor

How androgynous are you? Thomas Piercy, University of Cambridge.

‘Male’ vs ‘female’ brains: having a mix of both is common and offers big advantages – new research

Barbara Jacquelyn Sahakian, University of Cambridge; Christelle Langley, University of Cambridge; Qiang Luo, Fudan University; Yi Zhang, University of Cambridge

While there are small differences between male and female brains, most of us have a mix of both.

David Suchet as Hercule Poirot. ITV

Poirot at 100: the refugee detective who stole Britain’s heart

Christopher Pittard, University of Portsmouth

Christie used her Belgian sleuth to unpick ideas of England and Englishness.

A new kind of politics: Joe Biden delivers his inaugural speech. EPA-EFE/Patrick Semansky / POOL

Joe Biden sends a clear message to the watching world – America’s back

Scott Lucas, University of Birmingham

Biden's inaugural speech focused mainly on healing domestic rifts and a new kind of politics at home. But he also signalled a return to engagement with the outside world.

Starfish are one of the most recognisable animals on our planet. Yellowj/shutterstock.com

Starfish: rare fossil helps answer the mystery of how they evolved arms

Aaron W Hunter, University of Cambridge

New study sheds light on how the starfish evolved.

Lightly-browned bacon has less carcinogens than well-cooked bacon. D. Pimborough/ Shutterstock

Bacon: how you cook it could partially lower cancer risk

Richard Hoffman, University of Hertfordshire

People with Barrett's oesphagus may still want to be especially careful about eating bacon.

Shutterstock

This is what lockdown sounds like

Pete Stollery, University of Aberdeen

A lockdown sound map project asked people to actively listen to the sounds being revealed in the absence of normal everyday noise.

 

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