Sentences with phrase «laying echidnas»

Not exact matches

Until this discovery, it was known only in fish, amphibians, and two egg - laying mammals, or monotremes, the platypus and echidna.

They were the progenitors of nearly all modern mammals (the exceptions, platypuses and echidnas, still lay eggs to this day).

For instance, the long - beaked echidna, a spiny, egg - laying mammal, is known from only a single specimen collected in 1961 by a Dutch researcher in Indonesia's Papua Province.

The analysis grouped the egg - laying Australian monotremes — the platypus and echidna — with the early southern mammals.