News

  1. Artificial Intelligence

    A look under the hood of DeepSeek’s AI models doesn’t provide all the answers

    A peer-reviewed paper about Chinese startup DeepSeek's models explains their training approach but not how they work through intermediate steps.

    By Ananya
  2. Psychology

    Some irritability is normal. Here’s when it’s not

    Irritability is a normal response to frustrations, but it can sometimes signal an underlying mental health disorder, like depression or anxiety.

    By Katarina Zimmer
  3. 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
  4. 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.