Happy 200th Birthday Karl Marx!

Across the country, the weather is turning and we should all be out enjoying spring. So while you're whistling on a walk, or recharging your brain while going for a run, or even enjoying a piece of Karl Marx's birthday cake, I offer you some of my favourite reads of the last week from across The Conversation network.

Have a great weekend and we'll be back in your Inbox on Monday.

Scott White

Editor

Weekend Reads

Why you're better at whistling than singing

Michel Belyk, University of Toronto; Joseph F Johnson, Maastricht University; Sonja A. Kotz, Maastricht University

Humans are the only ape that sings, but we're also the only ape that sings poorly. It's a lot easier to whistle.

How exercise can boost your brain function

Scott Lear, Simon Fraser University

From opioids to endocannabinoids, an exercise scholar digs into the science to explain the mental health benefits of a regular workout.

Karl Marx at 200: why the workers' way of knowing still matters

Nigel Gibson, Emerson College

Thinking with Karl Marx on his 200th birthday means recognising the importance of thought.

Nobel literature row: usually it takes a world war to disrupt the prize

Thomas Kaiserfeld, Lund University

The long and turbulent history of the Nobel Prize for Literature continues.

Local links across Africa provide key clues to fighting the illegal ivory trade

Kristof Titeca, University of Antwerp

Locations like border towns as well as people acting as middlemen provide key insights into Uganda's ivory trade.

Ce qu’un siècle de changement climatique a fait au plus grand glacier français

Kieran Baxter, University of Dundee

Un chercheur s’est servi d’images aériennes du début du XXᵉ siècle pour cartographier un siècle de fonte glaciaire dans les Alpes. Les résultats sont frappants.

If tennis really wants to stamp out corruption, it will need systemic change

Steve Georgakis, University of Sydney

An independent review has recommended steps to clean up the sport. Tennis authorities must now demonstrate they have the will to take action.

We uncovered the genetic basis of risk taking – and found it's linked to obesity and mental illness

Emma Clifton, University of Cambridge; Felix Day, University of Cambridge; Ken Ong, University of Cambridge

Men who take risks are more likely to eat in response to unpleasant emotions.

Russia: how Western condemnation lets Putin off the hook

Gerhard Schnyder, Loughborough University

Russian politics depends on a competition between different power networks. And hardline nationalists are winning at the expense of reformers.

Air pollution increases crime in cities – here's how

Gary Haq, University of York

Pollutants can increase stress levels, which in turn affects judgment and makes some people more likely to commit crime.