Assertion: living monotreme | /r/HasProperty | echidna
Facets:
Source sentences:
text: In an influential 1988 paper, Timothy Rowe defined Mammalia phylogenetically as the crown group of mammals, the clade consisting of the most recent common ancestor of living monotremes (echidnas and platypuses) and therian mammals (marsupials and placentals) and all descendants of that ancestor.
text: The only living monotremes today are platypuses and echidnas.
text: The only living monotremes are the duck-billed platypus, found in Australia and New Guinea, and the echidnas, found in New Guinea.