What medieval artists teach us about animal sex

The prevailing view is that animals mainly have sex to reproduce. Until recently, therefore, scientists assumed that animals were relentlessly heterosexual. This is the message conveyed by countless zoos, wildlife documentaries, ...

Five ways nanotechnology is securing your future

The past 70 years have seen the way we live and work transformed by two tiny inventions. The electronic transistor and the microchip are what make all modern electronics possible, and since their development in the 1940s ...

An inmate's love for math leads to new discoveries

There are many examples of mathematical breakthroughs achieved in prison. Maybe the most famous is from the French mathematician Andre Weil, who came up with his hugely influential conjectures while in a military prison in ...

What toilets and sewers tell us about ancient Roman sanitation

I've spent an awful lot of time in Roman sewers – enough to earn me the nickname "Queen of Latrines" from my friends. The Etruscans laid the first underground sewers in the city of Rome around 500 BC. These cavernous tunnels ...

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