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They are also known to fishermen as "conger eels" or "Congo snakes", which are zoologically incorrect designations or misnomers, since amphiumas are actually salamanders (and thus amphibians), and not fish, nor reptiles and are not from Congo. Amphiuma exhibits one of the largest complements of DNA in the living world, around 25 times more than ...
The origins and evolutionary relationships between the three main groups of amphibians (apodans, urodeles and anurans) is a matter of debate.A 2005 molecular phylogeny, based on rDNA analysis, suggested that the first divergence between these three groups took place soon after they had branched from the lobe-finned fish in the Devonian (around 360 million years ago), and before the breakup of ...
The skin of salamanders, in common with other amphibians, is thin, permeable to water, serves as a respiratory membrane, and is well-supplied with glands. It has highly cornified outer layers, renewed periodically through a skin shedding process controlled by hormones from the pituitary and thyroid glands. During moulting, the skin initially ...
“The spotted salamander (Ambystoma maculatum) was designated the official state amphibian of South Carolina in 1999 after a year-long campaign by the third grade class at Woodlands Heights ...
This is a list of amphibians of Pennsylvania as listed by the Pennsylvania Fish and Boat Commission. [1] Notes on ranges provided by Pennsylvania Amphibian & Reptile Survey . [ 2 ] Pennsylvania has 41 native species of amphibians, with 23 salamanders and newts, and 18 species of frogs and toads.
The Jefferson salamander, which hybridizes with the blue-spotted salamander, [8] is a rare species of special concern in Vermont. [10] Spotted salamander, Ambystoma maculatum [13] [14] The spotted salamander is a Species of Greatest Conservation Need as identified in the Vermont Wildlife Action Plan. [15] Marbled salamander, Ambystoma opacum ...
The Lissamphibia (from Greek λισσός (lissós, "smooth") + ἀμφίβια (amphíbia), meaning "smooth amphibians") is a group of tetrapods that includes all modern amphibians. Lissamphibians consist of three living groups: the Salientia ( frogs and their extinct relatives), the Caudata ( salamanders and their extinct relatives), and the ...
This is a list of amphibians found in the United States. A total of 306 amphibian species have been recorded in the United States , [ 1 ] 2 of which are now extinct. [ 2 ] This list is derived from the database listing of Amphibian Species of the World .
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