1. Animals

    Sumatran orangutans start crafting their engineering skills as infants

    By 6 months old, young orangutans are experimenting with construction materials, and by 6 years old, they are building platforms 20 meters in the air.

  2. Neuroscience

    The heart plays a hidden role in our mental health

    Deciphering the messages that the heart sends to the brain could lead to new anxiety treatments and even unlock the secrets of consciousness.

  3. Health & Medicine

    Genetic analyses of the bird flu virus unveil its evolution and potential

    The H5N1 outbreak in cattle is giving flashbacks to the COVID pandemic. But this time is different.

  4. Neuroscience

    How smart was T. rex?

    A debate over how to count neurons in dinosaurs is raising questions about how to understand extinct animals’ behavior.

  5. Paleontology

    How did an ancient shark parasite end up fossilized in tree resin?

    A worm preserved in 99-million-year-old amber resembles modern flatworms in shark intestines. The rare finding has scientists stumped.

  6. Animals

    Tiger beetles may weaponize ultrasound against bats

    In response to recordings of echolocating bats, tiger beetles emit noises that mimic toxic moths that bats avoid.

  7. Health & Medicine

    Cows might host both human and bird flus

    Both kinds of influenza viruses may break into cattle cells using receptors similar to those in people, wild birds and poultry.

  8. Earth

    A weaker magnetic field may have paved the way for marine life to go big

    Decreased protection from cosmic radiation may have increased oxygen levels in the atmosphere and oceans, allowing animals to grow larger.

  9. Animals

    Getting wild mosquitoes back to the lab alive takes a custom backpack

    The new low-tech transportation method could help scientists in Africa assess if malaria-carrying mosquitoes are resistant to a common insecticide.

  10. Animals

    This snake goes to extremes to play dead — and it appears to pay off

    When dice snakes fake their death to avoid predators, those that use a combination of blood, poop and musk spend less time pretending to be dead.

  11. Neuroscience

    Lampreys have ‘fight or flight’ cells, challenging ideas about nervous system evolution

    The discovery of sympathetic nervous system cells in lampreys draws a closer tie between the animal and complex vertebrates — such as humans.

  12. Animals

    Want to see butterflies in your backyard? Try doing less yardwork

    Growing out patches of grass can lure adult butterflies and moths with nectar and offer lawn mower–free havens for toddler caterpillars.