Feedback brings you up to date with the latest experiments into whether people think they hear Bing Crosby crooning White Christmas, while also investigating if seasonal holidays bring a rise or a fall in the number of humans
On 7 January, a man with severe heart failure received a genetically modified pig's heart. Although he died two months later, the procedure marked a step towards xenotransplantation
A century and a half after HMS Challenger embarked on the first global survey of the ocean, some ideas from the era still linger. They urgently need to be left behind, says Helen Scales
When it comes to knowing yourself, your own perception of your personality doesn’t necessarily align with that of people around you. But which is more accurate? And can discovering your true nature lead to a better life?