egg-laying mammal


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Noun1.egg-laying mammal - the most primitive mammals comprising the only extant members of the subclass Prototheriaegg-laying mammal - the most primitive mammals comprising the only extant members of the subclass Prototheria
prototherian - primitive oviparous mammals found only in Australia and Tasmania and New Guinea
echidna, spiny anteater, anteater - a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to Australia
echidna, spiny anteater, anteater - a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to New Guinea
duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus, platypus, duckbill - small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae
References in periodicals archive ?
Augee M, Gooden B and Musser A (2006) Echidna: extraordinary egg-laying mammal (CSIRO Publishing, Australian Natural History series: Collingwood, Victoria)
If necessity is the mother of invention, then it would appear that even Mother Nature had to respond with novelty in giving us biological adaptations like the platypus (an egg-laying mammal, or monotreme) and the marsupial Kangaroo.
Some fish have electroreceptors, as do echidnas, the other egg-laying mammal.
WHO WHAT WHERE WHEN: Tintoretto; An egg-laying mammal, such as the echidna or platypus; Royal Court Theatre; 1948.
Molecular studies had suggested that the platypus diverged from the echidna - the only other egg-laying mammal - somewhere between 17 and 80million years ago.
The echidna (ih-KID-nuh) is another egg-laying mammal, so it also has no belly button.
Australians call this egg-laying mammal, or monotreme, the "Bits and Pieces Animal.
The newly sequenced platypus genome, to be published concurrently with the Stanford research, provides a wealth of data about the unique egg-laying mammal.
Two long-beaked Echidnas, a primitive egg-laying mammal, simply let scientists pick them up and bring them back to camp to be studied.
Fossils of an ancient egg-laying mammal indicate that the configuration of the bones in all living mammals' ears arose at least twice along independent evolutionary pathways, paleontologists say.
One kind is the platypus--that weird duck-billed, egg-laying mammal that lives in Australia.