Uncategorized

  1. Life

    Monarch caterpillars head-butt each other to fight for scarce food

    Video experiments show that monarch caterpillars turn aggressive when there’s not enough milkweed to go around.

    By Curtis Segarra
  2. Animals

    Guttural toads shrank by a third after just 100 years on two islands

    Introduced in the 1920s, toads on two islands in the Indian Ocean have shrunken limbs and bodies that may be evidence that "island dwarfism" can evolve quickly.

    By Jake Buehler
  3. Health & Medicine

    New Pfizer results show its COVID-19 vaccine is nearly 95% effective

    With final results – including showing its vaccine is 94 percent effective in the elderly – Pfizer is poised to request emergency use authorization.