Learn how it’s not possible to sleep too much and how each person’s sleep needs differ.

Learn how a unique combination of anatomical traits and CT-scan data led researchers to classify Chromeornis as a new ...

Find out about the fear of nature, which may become more and more widespread as we spend more of our time inside.

Learn how axolotls are able to fully regenerate their thymus, a small organ that trains immune cells to fight infections.