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Latest Hearing range Stories

Hearing Tested In Bristol Bay Beluga Whale Population
2014-05-15 03:52:01

Woods Hole Oceanographic Institution The ocean is an increasingly industrialized space. Shipping, fishing, and recreational vessels, oil and gas exploration and other human activities all increase noise levels in the ocean and make it more difficult for marine mammals to hear and potentially diminish their range of hearing. “Hearing is the main way marine mammals find their way around the ocean,” said Aran Mooney, a biologist at Woods Hole Oceanographic Institution (WHOI). It’s...

Whales Hear Us More Than We Realize
2014-05-02 03:56:58

Tom Rickey, Pacific Northwest National Laboratory Killer whales and other marine mammals likely hear sonar signals more than we've known. That's because commercially available sonar systems, which are designed to create signals beyond the range of hearing of such animals, also emit signals known to be within their hearing range, scientists have discovered. The sound is likely very soft and audible only when the animals are within a few hundred meters of the source, say the authors...

Obesity Linked To Hearing Loss Kids
2013-06-18 08:29:05

April Flowers for redOrbit.com - Your Universe Online A new study led by researchers at Columbia University Medical Center shows obese adolescents are more likely to have hearing loss problems than their normal-weight peers.  The study findings, published in The Laryngoscope, demonstrated that obese adolescents have increased hearing loss across all frequencies and were almost twice as likely to have unilateral (one-sided) low-frequency hearing loss. "This is the first paper to...

Philippine Tarsier Has Bat-Like Pitch
2012-02-08 10:19:09

One of the world´s smallest primates, the Philippine Tarsier (Tarsius syrichta), has the world´s highest pitched vocalization of any primate ever documented, according to a study published Wednesday. That call, however, is so high-pitched that it is inaudible to human ears. It is a big voice for such a small creature, no bigger than the size of a man´s hand. It shrieks out the vocalization as a warning of danger or a call to dinner. “Tarsiers are among only a...

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2009-05-11 08:14:11

Research could have implications for addressing hearing loss in humans UCLA scientists report for the first time on the only known frog species that can communicate using purely ultrasonic calls, whose frequencies are too high to be heard by humans. Known as Huia cavitympanum, the frog lives only on the Southeast Asian island of Borneo. Ultrasounds are high-pitched sounds more than 20 kilohertz (kHz) in frequency, which exceeds the upper limit of sounds detectable by humans and is far higher...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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