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benjamin
Guest
A great amphibian book of mine says that because newts lack a tympanum their inner ears recieve vibrations conducted via muscle from their scapula. Has any body else heard or read this?
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heather
Guest
Hi, I believe what you are referring to is the papilla amphibiorum. From what I understand, vibrations from the ground do travel up the fore limb and are conducted via the scapula to the inner ear. This papilla amphibiorum is a common trait to both anura and caudata. At least thats how I understand it.
Heather
Heather
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kaysie
Guest
laymen's terms: They hear the vibrations in the ground through their bones. Spiffy
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benjamin
Guest
Yeah but it's the only hearing device in caudata. My book says caudates can also use it to hear air borne vibrations to a certain degree.
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edward
Guest
Hi All,
According to Amphibian Biology volume 3, Sensory Perception page 892
" In contrast to other tetrapods, amphibians have two sensory organs apparently exclusively dedicated to the perception of airborn sound; these are the amphibian papilla and the basilar papilla. In addition, amphibians have both the saccule and the lagena involved in the perception of low-frequency sound and substrate vibration."
This was published in 1998 so I'm not sure what changes have occured since then.
Ed
According to Amphibian Biology volume 3, Sensory Perception page 892
" In contrast to other tetrapods, amphibians have two sensory organs apparently exclusively dedicated to the perception of airborn sound; these are the amphibian papilla and the basilar papilla. In addition, amphibians have both the saccule and the lagena involved in the perception of low-frequency sound and substrate vibration."
This was published in 1998 so I'm not sure what changes have occured since then.
Ed
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jesper
Guest
Wow Ed, If the newts were like that in 1998 I don't think they have evolved anything new since then
*joking*