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Superregnum: Eukaryota

Regnum: Animalia

Subregnum: Eumetazoa

Superphylum: Deuterostomia

Phylum: Chordata

Subphylum: Vertebrata

Infraphylum: Gnathostomata

Superclassis: Tetrapoda

Classis: Mammalia

Subclassis: Prototheria

Ordo: Monotremata

Familia: Tachyglossidae

Genus: Tachyglossus

Species: Tachyglossus aculeatus

Yes they are however they are a very primitive side branch of what we would consider typical mammals. They lay eggs and their mammary glands are little more then sweat glands.

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17y ago

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