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Testicles can tell us a surprising amount about evolution. That’s because vastly different sizes of this body part have evolved in animals of roughly the same stature. Relative to body weight, a human testicle is triple the size of a gorilla’s but a fifth of that of a chimpanzee. Zoology professor Max Telford writes about how scientists have unravelled this mystery – and yet may never figure out why only humans have chins.
Faced with the biggest rebellion of his tenure, prime minister Keir Starmer is promising concessions over planned cuts to disability benefits. The issue is tearing the Labour party apart, but what does the public think? Politics professor John Curtice reveals new data that helps explain why the government is in such a tight spot on this issue.
Another problem lies just around the corner for Starmer in the wake of news that the UK is to purchase at least 12 F-35A stealth fighters as part of a massive increase in defence spending. That problem is that the RAF doesn’t have the capacity to refuel them in mid-air.
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Jenna Hutber
Commissioning Editor, Science
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neurobit/Shutterstock
Max Telford, UCL
Why human testicles are so different to chimpanzees’ and gorillas’.
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Keir Starmer’s MPs are rebelling en masse against cuts to the benefits system.
Flickr/UK Parliament
John Curtice, National Centre for Social Research
The public isn’t enthusiastic about increasing disability benefit spending – but they’re by no means in favour of cuts either.
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A1C Jake Welty
Arun Dawson, King's College London
The F-35A is not compatible with the UK’s current fleet of tanker aircraft.
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World
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Helena F. S. Lopes, Cardiff University
Macau saw an influx of refugees during the war, with some going on to influence all facets of life in the territory.
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Andrew Gawthorpe, Leiden University
World leaders have decided the best way to handle Trump is through flattery.
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Joscha Abels, University of Tübingen
Musk’s ability to switch satellite communications on and off can make a considerable difference to sensitive situations.
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Andrew Corbett, King's College London
The Nato summit showed up an increasing divide between Europe and the US, and their military priorities.
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Arts + Culture
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Pippa Catterall, University of Westminster
Even the memorial to Queen Victoria, undoubtedly the most commemorated woman in British history, is relatively modest in scale compared to this new project.
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Nada Saadaoui, University of Cumbria
For Austen’s heroines, independence often begins on foot.
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Environment
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Salman Ahmad, University of the West of Scotland
Worries about investment and cost are stalling progress.
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Matt Smith, University of Portsmouth
Beyond theatres, puppets can affect people in everyday spaces, just as The Herds does.
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Health
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Brendan Kelly, Trinity College Dublin
We need connection, not panic.
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Jennifer Donnelly, RCSI University of Medicine and Health Sciences
You don’t need silence, incense, or hours of free time to benefit from mantra meditation. A few repeated words can shift your mind, and find a moment of presence.
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Dipa Kamdar, Kingston University
Many common prescription drugs block the body’s ability to keep us cool.
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Podcasts
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Gemma Ware, The Conversation
Listen to disability surveillance expert Amy Gaeta on The Conversation Weekly podcast.
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1 April - 22 August 2025
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25 April - 27 June 2025
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Colchester, Essex
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25 April - 27 June 2025
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Colchester, Essex
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