Researchers have documented orcas seemingly gifting rays, seals and fish to scientists and divers, which could suggest they ...

Eggs and embryos from people with polycystic ovary syndrome have altered patterns of so-called epigenetic tags, which could ...

AI models change their medical recommendations when people ask them questions that include colourful language, typos, odd ...

A long-lasting formulation of an antiviral drug greatly reduced people’s risk of a symptomatic flu infection in a trial, and ...