Uncategorized

  1. Animals

    Some frogs may be bouncing back after killer chytrid fungus

    Frogs in Panama may be developing defenses against a fatal skin disease, a new study suggests.

    By Susan Milius
  2. Life

    Why cracking your knuckles can be so noisy

    Knuckles crack due to the partial collapse of bubbles in joint fluid, a new study suggests.

    By Emily Conover
  3. Health & Medicine

    Opioids kill. Here’s how an overdose shuts down your body

    Powerful opioids affect many parts of the body, but the drugs’ most deadly effects are on breathing.

    By Laura Sanders
  4. Materials Science

    Live heart cells make this material shift color like a chameleon

    A new material made of heart cells from rats and hydrogel changes color as the living cells contract and relax.