What is chemsex and why is the UK government worried about it?
The UK government wants to address chemsex, which usually involves drugs like miaow miaow or GHB. Clare Wilson explains the health concerns around the trend
Laws of mathematics don’t apply here, says Australian PM
Inspired by the UK’s Investigatory Powers Act, Malcolm Turnbull has proposed a new cybersecurity law to circumvent encryption – and he won’t be beaten by maths
150-year-old zombie plants revived after excavating ghost ponds
Plant species from ghost ponds that were buried alive when agricultural land expanded can survive for hundreds of years
Google’s Academic Influence Campaign: It’s Complicated
Several academics named in a database of Google funding recipients say they’ve never received money from the company.
Polar bear attacks on people set to rise as climate changes
Dwindling sea ice is driving hungry bears on to land and towards human settlements
Hundreds charged in huge opioid and healthcare fraud crackdown
Charges have been brought against 412 people in the US for healthcare fraud, including a doctor who allegedly gave out 12,000 illegal prescriptions for opioids
US ranked worst healthcare system, while the NHS is the best
An analysis of 11 wealthy nations, including Australia and Canada, has found that the US healthcare system is the worst, particularly for fair and easy access
Use waste rather than crops for biofuels, says UK report
Liquid biofuels can help reduce carbon emissions, but the focus should be on making them from wastes such as cooking oil, says major review
A type of bacteria might speed up the growth of colon cancer
More than 70 per cent of colon tumours may contain Streptococcus gallolyticus gallolyticus, a bacterium that accelerates tumour growth when fed to mice
Ravens can plan for future as well as 4-year-old children can
The smart birds seem to have evolved this flexible cognitive ability independently from hominids as the two lineages diverged about 320 million years ago