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Sharks are very sensitive to low frequency sounds and have good directional hearing. The endolymphatic pores on the top of a shark's head are the only external evidence of its ears.
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www.enchantedlearning.com/subjects/sharks/anatomy/Sense...
www.enchantedlearning.com/subjects/sharks/anatomy/Senses.shtml
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The endolymphatic pores lead to the endolymphatic ducts (see Figs. 1-3) ..... using playback of sounds have been used to attract sharks of at least 20 ...
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icb.oxfordjournals.org/cgi/reprint/17/2/443.pdf
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The sharks used in lab have been fixed in formalin and packed in "carosafe" for preservation. ... On the dorsum of the head, medial to spiracles are the endolymphatic pores. Extending from just behind each spiracle to the tail are a series of tiny openings which compose the lateral line system. Locate the pharyngeal region...
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core.ecu.edu/biol/singhasc/Externalanatomy_shark.htm
core.ecu.edu/biol/singhasc/Externalanatomy_shark.htm
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Goldfish Carassius auratus were used as a baseline to compare a species with specialized hearing adaptations versus sharks with no known adaptations, ... Rochester Electro-Medical, Inc., Tampa, FL, USA) were placed subdermally 1 cm posterior to the endolymphatic pores in sharks (recording electrode), in the dorsal musculature...
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jeb.biologists.org/cgi/content/full/210/3/505
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Rochester Electro-Medical, Inc., Tampa, FL, USA) were placed subdermally 1 cm posterior to the endolymphatic pores (recording electrode), in the dorsal musculature near the dorsal fin ... We would like to thank Dr Phillip Motta and Dr Daniel Huber for assistance in obtaining the sharks used in these experiments.
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jeb.biologists.org/cgi/content/full/210/1/75
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However, odor detection is not only used in hunting. Sharks and rays produce pheromones which signal their reproductive state to potential mates and smell may also be used in navigation. ... These cavities are filled with endolymph which in sharks is mainly sea water that enters through the endolymphatic ducts.
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www.elasmodiver.com/shark_senses.htm
www.elasmodiver.com/shark_senses.htm
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Hearing: Sharks are very sensitive to low frequency sounds and have good directional hearing. The endolymphatic pores on the top of a shark's head are the only external evidence of its ears. ... Because humans are not normally sea animals sharks are not used to eating human flesh and they won't like it. So the myth that...
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fabian.icebox.nl/roland/sharkattack.php
fabian.icebox.nl/roland/sharkattack.php
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A single black grain suddenly rolled uphill, right into the endolymphatic pore. ... It was a traditional fish tag, used on tuna, salmon, sharks, and many others. And although it looked as if it were traumatic, it didn't appear to damage the fish. The wound soon healed, and the fish behaved as if the tag didn't exist.
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www.gulfspecimen.org/WildernessCoast.htm
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tively, used by Motta ('77) to describe the dermis of several shark species. The elasmo- .... posterior to the endolymphatic pores (sur- ...
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doi.wiley.com/10.1002/(SICI)1097-4687(199810)238:1%3C1:...
doi.wiley.com/10.1002/(SICI)1097-4687(199810)238:1%3C1::AID-JMOR1%3E3.3.CO;2-1
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