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Croak!


Scientists have discovered that one species of frog from China "ribbits" using ultrasound. Some mammals The class Mammalia (the Mammals) is divided into two subclasses based on reproductive techniques: egg laying mammals (the Monotremes); and mammals which give live birth. The latter subclass is divided into two infraclasses: pouched mammals (the marsupials); and the placental mammals. , like bats, are also known to communicate by emitting e·mit  
tr.v. e·mit·ted, e·mit·ting, e·mits
1. To give or send out (matter or energy): isotopes that emit radioactive particles; a stove emitting heat.

2.
a.
 and detecting sound waves with frequencies (vibrations per second) too high for humans to hear. But the concave-eared torrent See BitTorrent.

torrent - BitTorrent
 frog is the first known non-mammal to have this superpower.

Ultrasound comes in handy when the frogs try to communicate over the noisy waterfalls near their home in Huangshan, China, says Albert Feng, a biologist at the University of Illinois University of Illinois may refer to:
  • University of Illinois at Urbana-Champaign (flagship campus)
  • University of Illinois at Chicago
  • University of Illinois at Springfield
  • University of Illinois system
It can also refer to:
. By switching to ultrasound, the frogs' high-pitched croaks can be heard over the low-frequency sounds of the waterfalls.

HEAR THIS:

Unique pitlike ears help the torrent frog, or Amolops, tormotus, detect ultrasound.
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Title Annotation:ultrasound being produced by frogs
Author:Chiang, Mona
Publication:Science World
Article Type:Brief article
Geographic Code:9CHIN
Date:Sep 4, 2006
Words:115
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