Search results
Results From The WOW.Com Content Network
On land, amphibians are restricted to moist habitats because of the need to keep their skin damp. [31] Modern amphibians have a simplified anatomy compared to their ancestors due to paedomorphosis, caused by two evolutionary trends: miniaturization and an unusually large genome, which result in a slower growth and development rate compared to ...
The skin is formed into over 300 transverse folds which give the caecilian the appearance of being segmented. The head has a rounded snout and a pair of extensible tentacles near the mouth, rather closer to the eyes than to the nostrils. The colour of this caecilian is steely blue above and pale yellow underneath, with a yellow band running ...
The skin also has numerous ring-shaped folds, or annuli, that partially encircle the body, giving them a segmented appearance. Like some other living amphibians, the skin contains glands that secrete a toxin to deter predators. [15] The skin secretions of Siphonops paulensis have been shown to have hemolytic properties. [26]
This page was last edited on 28 December 2013, at 23:30 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The word skin originally only referred to dressed and tanned animal hide and the usual word for human skin was hide. Skin is a borrowing from Old Norse skinn "animal hide, fur", ultimately from the Proto-Indo-European root *sek-, meaning "to cut" (probably a reference to the fact that in those times animal hide was commonly cut off to be used as garment).
Necturus is a genus of aquatic salamanders in the family Proteidae. Species of the genus are native to the eastern United States and Canada. [2] [3] [4] They are commonly known as waterdogs and mudpuppies.
Amphibians are in decline worldwide, with 2 out of every 5 species threatened by extinction, according to a paper published Wednesday in the scientific journal Nature. More than 2,000 species of ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Amphibian_anatomy&oldid=561566954"This page was last edited on 25 June 2013, at 19:53