paddymelon vs brush kangaroo

paddymelon and brush kangaroo both are nouns.

Word	Noun	Adjective	Verb	Adverb
paddymelon	Yes	No	No	No
brush kangaroo	Yes	No	No	No

As nouns, brush kangaroo is a hypernym of paddymelon; that is, brush kangaroo is a word with a broader meaning than paddymelon:

paddymelon: small reddish-brown wallabies of scrubby areas of Australia and New Guinea
brush kangaroo: any of various small or medium-sized kangaroos; often brightly colored

Other hypernyms of paddymelon include wallaby.

paddymelon (noun)	brush kangaroo (noun)
small reddish-brown wallabies of scrubby areas of Australia and New Guinea	any of various small or medium-sized kangaroos; often brightly colored