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E.g., 07/16/2018
E.g., 07/16/2018
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Your search has returned 2079 articles:
  • How Bizarre

    Malaysia’s pig-tail macaques eat rats, head first

    Behavioral ecologist Anna Holzner recalls first seeing a southern pig-tail macaque munching on a headless rat. These monkeys were known to eat fruits, insects and even dirt, but nobody had reported them eating rats. “It was funny,” says Holzner, “and disgusting.”

    This unexpected act occurred dozens of times from March to August 2016 as Holzner, of the University of Leipzig in Germany,...

    07/13/2018 - 07:00 Animals
  • News

    Bird poop helps keep coral reefs healthy, but rats are messing that up

    When invasive rats chow down on island seabirds, coral reefs suffer.

    Researchers studied islands with and without the rodents in the Chagos Archipelago in the Indian Ocean. On rat-free isles, there were on average 1,243 birds per hectare compared with about two birds per hectare on rat-infested islands, the team found. And these rodentless islands had healthier coral reef ecosystems. The...

    07/11/2018 - 13:02 Ecosystems, Animals, Oceans
  • 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
  • News in Brief

    Bobtail squid coat their eggs in antifungal goo

    MADISON, Wis. — When eggs go bad, bacteria usually get the blame. But some bacteria help bobtail squid keep their eggs fresh.

    Bacteria that female Hawaiian bobtail squid (Euprymna scolopes) deposit in the jelly surrounding their eggs can fight off a fungus called Fusarium keratoplasticum, Spencer Nyholm reported July 9 at the Beneficial Microbes Conference.

    A specialized organ...

    07/10/2018 - 17:32 Microbiology, Animals
  • The Science Life

    Surprise! This shark looks like a male on the outside, but it’s made babies

    It’s easy to tell a male from a female shark. Flip it over. If it has a pair of claspers — finger-like extensions jutting from the end of the pelvic fins — it is male; no claspers means female. Like a penis, claspers deliver sperm inside the female.

    That was marine biologist Alissa Barnes’ understanding until she dissected seven bigeye houndsharks (Iago omanesis) with claspers and found...

    07/10/2018 - 10:00 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
  • News

    Soaring spiders may get cues from electric charges in the air

    Spiders may lack wings, but they aren’t confined to the ground. Under the right conditions, some spider species will climb to a high point, release silk strands to form a parachute, and float away on the breeze. Buoyed by air currents, they’ve been known to drift kilometers above Earth’s surface, and even to cross oceans to reach new habitats (SN: 2/4/17, p. 12).

    Now, new research...

    07/05/2018 - 16:48 Animals, Biophysics
  • Science Ticker

    North America’s earliest dogs came from Siberia

    North America’s first dogs arrived with humans who crossed a land bridge from Northeast Asia around 10,000 years ago or earlier, an analysis of ancient dogs’ DNA suggests.

    Those early American dogs derived from a Siberian ancestor, not North American wolves as some researchers have presumed, an international team reports in the July 6 Science. Genetic traces of ancient American dogs have...

    07/05/2018 - 14:12 Genetics, Anthropology, Animals
  • News

    Researchers create hybrid embryos of endangered white rhinos

    The nearly extinct northern white rhino may not be completely lost.

    For the first time, rhinoceros embryos have been made in the lab. Scientists injected preserved sperm from a male northern white rhino into eggs of female southern white rhinos, a closely related subspecies. The embryos were incubated until the cells begin to differentiate, a stage at which they can be implanted into a...

    07/04/2018 - 14:50 Animals, Cells, Conservation
  • News in Brief

    Mongolians practiced horse dentistry as early as 3,200 years ago

    Mongolian pastoralists were trying to remove troublesome teeth from horses’ mouths almost 3,200 years ago, making those mobile herders the earliest known practitioners of horse dentistry, a new study finds.

    Those initial, incomplete tooth removals led to procedures for extracting forward-positioned cheek teeth known as first premolars from young horses, say archaeologist William Taylor...

    07/02/2018 - 15:00 Archaeology, Anthropology, Animals