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E.g., 11/19/2018
E.g., 11/19/2018
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Your search has returned 443 articles:
  • News in Brief

    The giant iceberg that broke from Antarctica’s Larsen C ice shelf is stuck

    Curl the fingers of your left hand over your palm and stick out your thumb like a hitchhiker. Now, you have a rough map of Antarctica — with the inside of your thumb playing the part of the Larsen C ice shelf, says glaciologist Ted Scambos of the National Snow and Ice Data Center in Boulder, Colo.

    About a year ago, a massive iceberg roughly the size of Delaware broke off from that ice...

    07/23/2018 - 07:00 Earth, Oceans, Ecology
  • News in Brief

    Bloodflowers’ risk to monarchs could multiply as climate changes

    Climate change could make a showy invasive milkweed called a bloodflower even more of a menace for monarch butterflies than it already is.

    Monarch caterpillars, which feed on plants in the milkweed family, readily feast on Asclepias curassavica. Gardeners in the southern United States plant it for its showy orange blooms, yet the species “is turning out to be a bit of a nightmare,” says...

    07/10/2018 - 18:58 Climate, Ecology, Animals
  • Reviews & Previews

    Why humans, and Big Macs, depend on bees

    Buzz: The Nature and Necessity of BeesThor HansonBasic Books, $27

    When you hear the word bee, the image that pops to mind is probably a honeybee. Maybe a bumblebee. But for conservation biologist Thor Hanson, author of the new book Buzz, the world is abuzz with thousands of kinds of bees, each as beautiful and intriguing as the flowers on which they land.

    Speaking from his “...

    07/08/2018 - 08:00 Animals, Agriculture, Ecology
  • The –est

    Each year painted lady butterflies cross the Sahara — and then go back again

    Move over, monarchs. The painted lady butterfly (Vanessa cardui) now boasts the farthest known butterfly migration.

    Though found across the world, the orange-and-brown beauties that live in Southern Europe migrate into Africa each fall, crossing the Sahara on their journey (SN Online: 10/12/16). But what happened after was a mystery because the butterflies disappeared. Researchers...

    06/20/2018 - 07:00 Animals, Ecology, Ecosystems
  • Wild Things

    Madagascar’s predators are probably vulnerable to toxic toads

    At some point eight to 10 years ago, some toads stowed away on a ship in Asia, possibly Ho Chi Minh City, and hitched a ride to Madagascar. Those invaders, Asian common toads, have been slowly spreading across the large island ever since.

    The toad’s skin contains a toxin that kills nearly anything that tries to eat the amphibian. Scientists have been warning of the toad’s danger to...

    06/19/2018 - 09:00 Ecology, Animals, Conservation
  • Introducing

    These newfound frogs have been trapped in amber for 99 million years

    About 99 million years ago, tiny frogs hopped through a wet, tropical forest — and an unlucky few ran afoul of some tree sap. Four newly described frog fossils, preserved in amber, offer the earliest direct evidence of ancient frogs living in a humid tropical clime — just as many modern amphibians do.

    None of the frog fossils is complete, making it difficult to place the frogs within...

    06/14/2018 - 09:00 Paleontology, Ecology, Animals
  • News

    In a conservation catch-22, efforts to save quolls might endanger them

    Conservationists are stuck in a catch-22: In trying to save some species, the would-be protectors may be giving the animals an evolutionary disadvantage. A new study describes how efforts to protect the endangered northern quoll, a spotted, kitten-sized marsupial native to Australia, by placing a population on a threat-free island may have actually undermined a key survival instinct.

    ...

    06/07/2018 - 12:33 Animals, Conservation, Ecology, Evolution
  • News

    A caterpillar outwits corn defenses by gorging on fattening ‘junk’ food

    Here’s the story of a caterpillar that foils gruesome violence orchestrated by corn.

    No, that’s not backward. Plants often look helpless to a human, but they fight with smells and other invisible chemistry. A growing body of evidence, for example, shows that plants under attack can waft out scents that attract help, such as tiny wasps that deal a lingering death to leaf-chewing...

    05/22/2018 - 07:00 Animals, Plants, Ecology
  • News

    Keeping global warming to 1.5 degrees C helps most species hold their ground

    Limiting global warming this century to just 1.5 degrees Celsius above preindustrial temperatures would be a boon to the planet’s biodiversity. This lower warming threshold, compared with warming of 2 degrees C, will preserve much larger swaths of the geographic ranges of tens of thousands of land-based species of plants, vertebrates and insects living on the planet, a new study suggests.

    ...
    05/17/2018 - 14:21 Earth, Climate, Animals, Ecology
  • Science Visualized

    See (and hear) the stunning diversity of bowhead whales’ songs

    In the pitch-black waters beneath the Arctic ice, bowhead whales get funky. A small population of endangered bowheads belt an unusually varied repertoire of songs, which grows more diverse during mating season.

    Hunted to near extinction in the 1600s, these fire truck–sized mammals now number in the 300s in the frigid waters around the Svalbard archipelago in Norway. Underwater audio...

    04/30/2018 - 07:00 Animals, Biophysics, Ecology