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RE: The Evolution Of Whales

in #nature6 years ago

Axolotl
The axolotl (, from Classical Nahuatl: āxōlōtl [aːˈʃoːloːtɬ] ( listen)), Ambystoma mexicanum, also known as the Mexican walking fish, is a neotenic salamander related to the tiger salamander. Although the axolotl is colloquially known as a "walking fish", it is not a fish, but an amphibian. The species originates from numerous lakes, such as Lake Xochimilco underlying Mexico City. Axolotls are unusual among amphibians in that they reach adulthood without undergoing metamorphosis.