Editor's note

Cheetahs really don’t like being in captivity. Compared with their wild counterparts and with other captive big cats, cheetahs in zoos suffer from unusual and otherwise rare diseases such as gastritis in alarming numbers. Adrian Tordiffe explains how he set out to understand why so many of these already endangered animals die once they’re locked up.

One of Donald Trump’s priorities on entering the White House was to renegotiate the North American Free Trade Agreement – or NAFTA – with Mexico and Canada. It’s a policy that won him key support from blue-collar workers. But, as Iván Farías Pelcastre and Scott Lucas outline, the Trump administration’s plan to do this fails to understand a few of the trade agreement’s fundamentals.

Today, some of the frontiers of the Roman Empire are national boundaries. But what was life like along these borders under the Romans? Emily Hanscam is part of a team of archaeologists looking for clues at Halmyris, which was an old frontier fort situated on the Danube in modern-day Romania.

Stephen Harris

Commissioning Editor

Top story

The cheetah population almost halved since 1975 with only an estimated 7,100 left in the wild today. Shutterstock

Cheetahs often don't thrive in captivity. We set out to find out why

Adrian Tordiffe, University of Pretoria

Captivity isn't kind to cheetahs where most develop diseases that are unusual in big cats. It's never been clear why this is the case, but understanding their metabolism might provide the answer.

Business + Economy

  • Three big problems with Trump's new NAFTA plan

    Iván Farías Pelcastre, University of Oxford; Scott Lucas, University of Birmingham

    The Trump administration has outlined its plans to renegotiate the North American Free Trade Agreement (NAFTA).

  • These five countries are conduits for the world's biggest tax havens

    Javier Garcia-Bernardo, University of Amsterdam; Eelke Heemskerk, University of Amsterdam; Frank Takes, Leiden University; Jan Fichtner, University of Amsterdam

    The Netherlands, Switzerland, the United Kingdom, Singapore and Ireland are among the rich countries that funnel major corporate money into secret offshore tax shelters, according to a new study.

  • The big business revolution: why the future is blockchain

    Rob Gowers, Anglia Ruskin University; Jukka Aminoff, Anglia Ruskin University

    Blockchain technology is familiar to us in the form of digital currency bitcoin. And if it makes it way to the mainstream, could it change the way the world does business forever?

Politics + Society

Science + Technology

Arts + Culture

  • The people who abuse MPs online

    Liam Mcloughlin, University of Salford; Stephen Ward, University of Salford

    MPs come in for a lot of abuse online. But who are the haters and is the media partly to blame for the way it reports politics?

Health + Medicine

Cities

Environment + Energy

 

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