axolotl vs mud puppy

axolotl and mud puppy both are nouns.

Word	Noun	Adjective	Verb	Adverb
axolotl	Yes	No	No	No
mud puppy	Yes	No	No	No

As nouns, axolotl and mud puppy are synonyms defined as:

axolotl and mud puppy: larval salamander of mountain lakes of Mexico that usually lives without metamorphosing

Other synonyms of axolotl include Ambystoma mexicanum.

axolotl (noun)	mud puppy (noun)
larval salamander of mountain lakes of Mexico that usually lives without metamorphosing	aquatic North American salamander with red feathery external gills
	larval salamander of mountain lakes of Mexico that usually lives without metamorphosing
	large salamander of North American rivers and streams