From toy shop shelves to the jungles of Jurassic Park, most people have probably seen plenty of depictions of dinosaurs. And we’ve gotten pretty good at portraying them accurately thanks to the hard work of palaeontologists. But one part of the dino body hasn’t received as much attention – the bottom.

Now one well preserved specimen has helped reveal not only the anatomy of the dinosaur derriere, but also exposed the fact these prehistoric creatures may have flashed their rears at each other as a way of communicating.

From the primeval past to the not-so-distant, it’s been 100 years since the concept of the robot was first introduced to audiences in a Czech playhouse. It terrified at the time, but it’s slightly odd that we’re still petrified of robots for precisely the same reasons today.

And, for those who’ve long harboured suspicions that cheese is magic, we’ve charted a spellbinding history of cheese divination (“tyromancy”, we’ll have you know) for you to sink your teeth into.

Alex King

Commissioning Editor, Science + Technology

Bob Nicholls Paleocreations

Dinosaurs may have ‘flashed’ each other with their bottoms, newly discovered fossil shows

Jakob Vinther, University of Bristol; Diane A. Kelly, University of Massachusetts Amherst

A reconstruction of a dinosaur's back passage reveals it may have been used for visual communication.

Pavel Chagochkin/Shutterstock.com

Robots were dreamt up 100 years ago – why haven’t our fears about them changed since?

Michael Szollosy, University of Sheffield

The 1921 play R.U.R. introduced the world to the word ‘robots’. Its plot is remarkably similar to robot stories told today.

Cheese and witches: a potent combination. apolonia via Shutterstock

The spellbinding history of cheese and witchcraft

Tabitha Stanmore, University of Bristol

For hundreds of years, magicians believed cheese could help them foretell the future or identify a criminal.

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