Native bear and Possum

Native bear noun - Sluggish tailless Australian arboreal marsupial with grey furry ears and coat; feeds on eucalyptus leaves and bark.

Possum and native bear are semantically related. In some cases you can use "Possum" instead a noun phrase "Native bear".

Possum noun - Nocturnal arboreal marsupial having a naked prehensile tail found from southern North America to northern South America.

Native bear and possum are semantically related. Sometimes you can replace phrase "Native bear" with "Possum", this terms are similar.