Chris Simms

Biochemical evidence suggests Norse people settled in Iceland almost 70 years before the accepted arrival date of the 870s, and didn't chop down the island's forests

Enamel does not naturally regenerate, which can lead to painful cavities, but a gel that harnesses some of the properties of saliva could restore the hard, shiny layer to teeth

Antidepressants can be very effective, but they also come with side effects that vary from one drug to the next, supporting the idea of more personalised prescriptions

Age-related macular degeneration is a common cause of vision loss, with existing treatments only able to slow its progression. But now an implant in the back of the eye and a pair of high-tech glasses have enabled people with the condition to read again

A beautifully preserved skeleton found on the UK’s Jurassic Coast has been identified as a new species of the marine reptiles known as ichthyosaurs

Learning to play an instrument has long been linked to improved reading skills among children, and we may finally understand why

In most mammals, females live longer than males, but in birds the trend goes the other way – a study of over 1000 species points to possible reasons for these differences

Extraordinary pictures show what a common antibiotic does to E. coli

The constant temperature and low humidity of a cave network in Saudi Arabia turned cheetahs, some of which died thousands of years ago, into mummies

Rising carbon dioxide levels have boosted the growth of trees in the Amazon rainforest over the past few decades, but it is unclear if this trend will continue