News

  1. Animals

    American bullfrogs may be threatening a rare frog species in Brazil

    A search for environmental DNA from critically endangered Pithecopus rusticus frogs turned up DNA from invasive American bullfrogs instead.

    By Joshua Rapp Learn
  2. Science & Society

    Not all cultures value happiness over other aspects of well-being

    Nordic countries topped the 2024 world happiness rankings. But culture dictates how people respond to surveys of happiness, a researcher argues.

    By Sujata Gupta
  3. Archaeology

    Human brains found at archaeological sites are surprisingly well-preserved

    Analyzing a new archive of 4,400 human brains cited in the archaeological record reveals the organ’s unique chemistry might prevent decay.

    By Nora Bradford
  4. Health & Medicine

    Long COVID brain fog may be due to damaged blood vessels in the brain

    MRI scans of long COVID patients with brain fog suggest that the blood brain barrier may be leaky.