1. Animals

    By fluttering its wings, this bird uses body language to tell its mate ‘after you’

    New observations suggest that Japanese tits gesture to communicate complex messages — a rare ability in the animal kingdom and a first seen in birds.

  2. Neuroscience

    Dogs know words for their favorite toys

    The brain activity of dogs that were expecting one toy but were shown another suggests canines create mental concepts of everyday objects.

  3. Animals

    American bullfrogs may be threatening a rare frog species in Brazil

    A search for environmental DNA from critically endangered Pithecopus rusticus frogs turned up DNA from invasive American bullfrogs instead.

  4. Animals

    Daddy longlegs look like they have two eyes. That doesn’t count the hidden ones

    Despite its two-eyed appearance, Phalangium opilio has six peepers. The four optical remnants shed light on the arachnids’ evolutionary history.

  5. Animals

    Male dragonflies’ wax coats might protect them against a warming climate

    The reflective wax, which cools males on sunny courtship flights, may also armor them against the effects of climate change.

  6. Animals

    Male mammals aren’t always bigger than females

    In a study of over 400 mammal species, less than half have males that are, on average, heavier than females, undermining a long-standing assumption.

  7. Animals

    A decades-old mystery has been solved with the help of newfound bee species

    Masked bees in Australia and French Polynesia have long-lost relatives in Fiji, suggesting that the bees’ ancestors island hopped.

  8. Animals

    Big monarch caterpillars don’t avoid toxic milkweed goo. They binge on it

    Instead of nipping milkweed to drain the plants’ defensive sap, older monarch caterpillars may seek the toxic sap. Lab larvae guzzled it from a pipette.

  9. Life

    This is the first egg-laying amphibian found to feed its babies ‘milk’

    Similar to mammals, these ringed caecilians make a nutrient-rich milk-like fluid to feed their mewling hatchlings up to six times a day.

  10. Environment

    How air pollution may make it harder for pollinators to find flowers

    Certain air pollutants that build up at night can break down the same fragrance molecules that attract pollinators like hawk moths to primroses.

  11. Animals

    See 3-D models of animal anatomy from openVertebrate’s public collection

    Over six years, researchers took CT scans of over 13,000 vertebrates to make museum collections more easily accessible to researchers and the public.

  12. Planetary Science

    The desert planet in ‘Dune’ is plausible, according to science

    Humans could live on the fictional planet Arrakis from Dune but (thankfully) no giant sandworms would menace them.