Evidence that birds are descended from dinosaurs has been around almost as long as Darwin’s theory of evolution. In 1861, scientists found a fossil of what looked like a bird with some very reptilian features. But since then, a debate has raged over whether this Archaeopteryx might just be another feathered dinosaur. John Nudds explains how he and his colleagues showed that a recently rediscovered Archaeopteryx specimen makes a much clearer case for this creature being a true “missing link”.

Brexit will make imported food more expensive, and many people will end up eating less fresh fruit and veg. This will have a huge impact on public health, and researchers now estimate the UK’s switch to a “Brexit diet” may cause up to 5,600 extra deaths per year from heart disease or cancer. Marco Springmann explains.

As the days grow cooler, the leaves on the trees start to change colour. But why does this happen? Giles Johnson explains, in our latest instalment of Curious Kids – a series in which experts answer children’s questions about the world.

We’ve published many stories on breastfeeding – from the health benefits of doing it, to the pressures that mount when deciding where to do it and how long to do it for. Now we’ve compiled ten top things that may cause worry, and expert Amy Brown has useful advice on how best to tackle them.

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