Spermatazoa: something that’s going on in a man’s body one month may be totally different from what’s happening the next month. Illustration: SciePro/iStock/Getty

Male scientists have long waxed poetic on the contents of their testes. “Sperm is a drop of brain,” wrote the ancient Greek writer Diogenes Laertius. (...)

US president Donald Trump speaks from the Truman Balcony of the White House in Washingto on Saturday. Photographer: Erin Scott/Bloomberg

US president Donald Trump said in a Fox News interview on Sunday he no longer has Covid-19 and is not a transmission risk for the virus, as he prepare(...)

US health secretary Alex Azar speaking in the Rose Garden of the White House on May 15th as Donald Trump looks on. Photograph: Mandel Ngan/AFP via Getty Images

The US is sending the highest level cabinet official to Taiwan since cutting diplomatic ties with Taipei 41 years ago, reflecting rising support for t(...)

Roger Bannister about to cross the line  and run the first sub-four minute  at Iffley Road in  Oxford in May 1954. Photograph: Norman Potter/Central Press/Getty Images

It’s over 30 years now since I ran my first competitive mile race. Back in 1989, to be exact, my second year at Villanova, and during my first indoor (...)

Prince Andrew has denied Epstein’s accuser Virginia Giuffre’s claim that she had a sexual encounter with the royal when she was 17. Photograph:  Getty

As the fallout from Prince Andrew’s friendship with convicted sex offender Jeffrey Epstein continues, questions have surfaced about whether the royal (...)

A burning tract of Amazon jungle is seen as it is being cleared by loggers and farmers in Porto Velho, Brazil . Photograph: Ueslei Marcelino/Reuters

Six states in Brazil’s Amazon region requested military help on Saturday to combat record fires that are tearing through the rainforest, provoking an (...)

 Guatemala’s president, Jimmy Morales, is backed by a powerful network of military and economic elites in seeking  to oust the UN-backed anti-impunity group Cicig. Photograph: Esteban Biba/EPA

War criminals convicted of extrajudicial killings, torture and sexual slavery could soon walk free if Guatemalan lawmakers sanction a blanket amnesty (...)

All those years ago, I felt a little bit sorry for Wendy, with her strange longing for shops on Stephen’s Day. Photograph:  Daniel Leal-Olivas/AFP/ Getty Images

Over the past while, I have been thinking about a Christmas years ago when my American friend Wendy came to spend Christmas with my parents and siblin(...)

Donald Trump Jr, son of presumptive Republican presidential nominee Donald Trump, gestures while speaking during the Republican National Convention in Cleveland, Ohio, on Tuesday. Photograph: David Paul Morris/Bloomberg

For a moment, it looked like last night’s events at the Republican national convention were copying the controversy of the previous night at the Quick(...)

Brothers  Brahim El Bakraoui (left) and Khalid El Bakraoui, identified as two of the suicide bombers in the Brussels attacks. Experts warned that extremists were trying to recruit entire families in Europe, portending the possibility of yet another evolution in jihadism. Photograph: EPA/Interpol

The identification of Khalid and Ibrahim El Bakraoui as suicide bombers in the deadly Brussels attacks is confronting investigators and counterterror(...)

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