Vol. 204 No. 6
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More Stories from the October 7, 2023 issue

  1. Health & Medicine

    Scientists grow humanized kidneys in pig embryos

    The work represents an important advance in the methods needed to grow humanized kidneys, hearts, and pancreases in animals.

  2. Genetics

    The Y chromosome’s genetic puzzle is finally complete

    New analyses of the human Y chromosome reveal millions of new bases and different locations for the same gene in different people.

  3. Animals

    A new DNA leaf swab technique could revolutionize how we monitor biodiversity

    Simple swabs of just 24 leaves in Uganda’s Kibale National Park provided a genetic snapshot of 52 animals in the tropical forest.

  4. Animals

    Some cannibal pirate spiders trick their cousins into ‘walking the plank’

    A pirate spider in Costa Rica uses a never-before-seen hunting strategy that exploits the way other spiders build webs.

  5. Archaeology

    Chemical residue reveals ancient Egyptians’ mummy-making mixtures

    Chemical clues in embalming vessels reveal previously unknown ingredients used to prepare bodies for mummification and their far-flung origins.

  6. Neuroscience

    Three ways of rejuvenating aging brains may work via the same protein

    Three brain rejuvenation methods may exert their effects through the same molecule, at least partly, which could lead to therapies for cognitive decline.

  7. Birds with more complex vocal skills are better problem-solvers

    Evidence for a relationship between bird vocal learning and cognitive prowess has been mixed. Now, a massive new study confirms they are linked.

  8. Health & Medicine

    A classical lullaby helped reduce newborns’ pain during heel pricks

    Methods to lessen pain for newborns during routine procedures include cuddling and a dose of a sugar solution. Music also appears promising.

  9. Paleontology

    This newfound birdlike dinosaur had surprisingly long legs

    Early birdlike dinosaurs are mostly short-limbed and thought to have lived in trees, but Fujianvenator prodigiosus may have run or waded in swamps.

  10. Particle Physics

    Scientists finally detected oxygen-28. Its instability surprised them

    The elusive isotope was predicted to be very stable, thanks to “magic” numbers of neutrons and protons. It fell apart almost immediately.

  11. Earth

    When discussing flora and fauna, don’t forget ‘funga’

    Conservation efforts often overlook fungi. That can change by using “mycologically inclusive language,” researchers say.

  12. Climate

    50 years ago, scientists warned of the ‘neglected dangers’ of heat islands

    In 1973, scientists knew temperatures in cities were higher than in rural areas. Now, some cities are attempting to cool down with engineering.