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Your search has returned 22 articles:
  • News

    Frog-hunting bats have ‘cocktail party effect’ workaround

    An experiment with fake frogs shows how certain bats adjust their hunting technique to compensate for unnatural noises.

    Humankind is loud, and research already suggests that birds alter their singing in urban noise. Now tests show that bats listening for the frogs they hunt switch from mostly quiet eavesdropping to pinging echolocating when artificial sounds mask the frog calls. That way...

    09/15/2016 - 14:00 Animals, Conservation
  • News

    Decoy switches frogs’ mating call preference

    A trick that salesmen use to sell expensive cars may help average frogs snag mates.    

    Female túngara frogs often switch which of two mating calls they prefer upon hearing a third, unattractive mating call, researchers report in the Aug. 28 Science. This action resembles a human behavior known as the “decoy effect.”

    “People are really interested in this because it’s such a common...

    08/27/2015 - 14:00 Animals, Evolution
  • Feature

    Noise made by humans can be bad news for animals

    I keep looking over my shoulder at the dark wall of roadside trees that passing headlights make slightly less black. Muggers are less of a worry than some suburban samaritan materializing out of the winter gloom to ask if everything’s OK with a reporter down on her hands and knees in front of a parked car, caressing the pavement.

    Explanation would not be easy. This is not an obvious...

    02/09/2015 - 13:00 Ecology, Animals, Conservation
  • Feature

    Lopped Off

    In July, the Ecuadorean navy helped apprehend a fishing vessel within the waters of the Galápagos National Park. On board lay the carcasses of 379 sharks — including threshers, hammer­heads, Galápagos, blues and a mako. Nearly severed fins hung from the mutilated, slippery bodies. The fins were presumably destined for trade in Asian markets, where shark-fin soup can sell for more than $100 a...

    10/21/2011 - 11:04
  • News

    Ancient New Guinea settlers headed for the hills

    Excavations in Papua New Guinea’s western highlands have turned up the oldest well-documented evidence of people in Sahul, a land mass that once joined the island to Australia.Stone tools and plant remains indicate that, as early as 49,000 years ago, people lived 2,000 meters, or 1.2 miles, above sea level in Papua New Guinea’s Ivane Valley, say archaeologist Glenn Summerhayes of the...

    09/30/2010 - 14:06 Humans & Society, Anthropology
  • News

    Superloud moth jams bat sonar

    A gray moth with orange highlights called Bertholdia trigona “goes berserk,” making lots of noise above the range of human hearing when a hunting bat approaches, says William Conner of Wake Forest University in Winston-Salem, N.C. Bats rely on their natural sonar to locate flying moths in the dark, but in a lab setup, the bats rarely managed to nab a loud moth.


    01/09/2009 - 18:00 Life & Evolution
  • Feature

    La Brea del Sur

    Los Angeles' Rancho La Brea is one of the world's most famous fossil-bearing sites. The tar pits there have yielded more than 1 million fossils representing 50 mammal species, 125 types of birds, and dozens of reptiles, insects, and other invertebrates. But L.A.'s claim to fossil fame could someday soon be equaled or surpassed by any of several spots far south of the U.S. border.


    01/08/2008 - 10:40 Archaeology
  • Feature

    Science News of the Year 2007

    Tuning In to Science

    In its own way, science is a lot like '60s rock 'n' roll on AM radio. If you're old enough, you remember the slogan: "And the hits just keep on comin'."

    With science, the news just keeps on comin'. Somehow, year after year, science never runs out of hit discoveries. From land-based laboratories to the depths of the oceans to remote realms of the cosmos, intrepid...

    12/18/2007 - 21:49 Humans & Society
  • Feature

    Science News of the Year 2005

    Science News of Yesteryear

    Anthropology & Archaeology




    Botany & Zoology

    Cell & Molecular...

    12/20/2005 - 03:53 Humans & Society
  • Feature

    Learning to Listen

    The aggressor swoops low over the treetops, piercing the night with a barrage of sonar pulses and searching for telltale data bouncing back. Some prospective targets perceive the ultrasound, take evasive action, and escape. Others, the unwary ones, are fair game. When the prowling aerialist senses the faint echoes bouncing off one of these prey, he turns toward the target, quickens his chirp...

    05/10/2005 - 13:13