Uncategorized

  1. Animals

    Huge relatives of white sharks lived earlier than thought

    Lamniform sharks such as great whites and tiger sharks are famous for their size. The first such giants evolved 15 million years earlier than thought.

    By Jake Buehler
  2. Health & Medicine

    GLP-1 drugs failed to slow Alzheimer’s in two big clinical trials

    Tantalizing results from small trials and anecdotes raised hopes that drugs like Ozempic could help. Despite setbacks, researchers aren’t giving up yet.

    By Meghan Rosen
  3. Anthropology

    Drought may have doomed the ‘hobbits’ of Flores

    Stalagmite data suggest Homo floresiensis faced prolonged drought that stressed both them and their prey, contributing to their disappearance.

    By Michael Marshall
  4. Health & Medicine

    A CDC panel has struck down universal newborn hepatitis B vaccination

    A reshaped vaccine committee voted to scale back newborn hepatitis B shots despite decades of data showing the birth dose is safe, effective and vital.