Comparative Neurophysiology: An Electric Convergence in Fish
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چکیده
منابع مشابه
Comparative Neurophysiology: An Electric Convergence in Fish
Two lineages of fishes convergently evolved electric organs; recent research has shown that they independently took advantage of an extra copy of a sodium channel gene to alter channel kinetics for the electric organ discharge.
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15 صفحه اولElectric Signals & Electric Fish
Philip K. Stoddard Department of Biological Sciences Florida International University Miami, Florida, 33199, USA Synopsis Electric sense (i.e. the ability to detect low-voltage electrical impulses from other individuals) is found in most primitive fish orders, a few derived teleost fish, some aquatic amphibians, the platypus and the echidna. Electric signals (i.e. self-generated electrical sign...
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Figure 1. Types and distribution of electric fish. Species of electric fish can be found in freshwater rivers of Africa and South America, as well as marine environments. Marine species are depicted in blue, freshwater species in yellow. Strongly electric fish use electricity to stun their prey, while weakly electric fish use electricity for sensing and communication. The waveform above each fi...
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2439 What could an African lion stalking a distant impala in the African savanna possibly have in common with an electric fish searching for nearby water fleas in the Amazon River? Both the lion and the rather less daunting 14cm black ghost knifefish (Apteronotus albifrons) use sensory information to help them to locate and catch prey. But lions, which rely on their acute vision during the hunt...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2006
ISSN: 0960-9822
DOI: 10.1016/j.cub.2006.03.074