Freya Parr

Freya Parr is a freelance journalist specializing in wildlife and nature writing. She is also the Deputy Editor of the National Trust Magazine and contributes to various other publications, including BBC Countryfile and BBC Wildlife Magazine.

Scientists want you to use toothpaste made from hair. Here’s why

As concerns grow over the sustainability of healthcare materials and the long-term use of fluoride, a surprising new alternative treatment for enamel decay is taking shape in the lab