egg-laying mammal


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Synonyms for egg-laying mammal

the most primitive mammals comprising the only extant members of the subclass Prototheria

References in periodicals archive ?
In the study conducted using platypus, walrus, and echidna - a small, burrowing, egg-laying mammal covered in spines, the researchers showed that sleep itself is highly adaptive, much like the inactive states seen in a wide range of species, starting with plants and simple microorganisms; these species have dormant states - as opposed to sleep - even though in many cases they do not have nervous systems.
Washington, June 10 (ANI): A scientist has successfully completed the first study of a rare egg-laying mammal called the long-beaked echidna, which many other field biologists considered "mission impossible".
Which continent is home to the only two egg-laying mammals, the platypus and the spiny anteater?
Similar to spurs found on modern egg-laying mammals, such as male platypuses, the spur is evidence that this fossil was most likely a male member of its species.
Electroreception--the ability to sense these bioelectric fields--has already been described in sharks, amphibians, fish and some egg-laying mammals.
The Echidna, one of only two egg-laying mammals, was named after Sir David in 1998 in honour of his conservation work.
They were amazed to find funnel-shaped tubes in the kidneys that are only found otherwise in freshwater fish, frogs and egg-laying mammals such as the platypus.
The echidna and the platypus are the world's only two egg-laying mammals.
Co-researcher Stewart Nicol said the study has uncovered important information about how the egg-laying mammals reproduce.
We will be working to protect some of the world's most extraordinary species, including giant venomous shrew-like creatures, matchbox-sized bats and egg-laying mammals, all of which are teetering on the Edge of extinction.
Two long-beaked echidnas - primitive egg-laying mammals - let the scientists pick them up and carry them off for study.
By studying all features in this exquisitely preserved fossil, researchers believe Maotherium to be more closely related to marsupials and placentals than to monotremes-primitive egg-laying mammals of Australia and New Guinea such as the platypus.
Two long-beaked echidnas -primitive egg-laying mammals - let the scientists pick them up and carry them off for study.
Nephrostomes appear briefly in the embryos of egg-laying mammals, such as the platypus, and function in adult fish and amphibians.