an egg-laying mammal, such as the echina or platypus
the most primitive mammals comprising the only extant members of the subclass Prototheria
a animal that lays eggs and suckles its young
a mammal that lays eggs but suckles its young on milk once they have hatched (e
a mammal that lays eggs, like birds
a mammal that lays eggs, such as a duck billed platypus
a mammal that lays eggs, such as a duck www
an egg-laying mammal and both are also potentially poisonous
an oviparous mammal in which genital, urinary and digestive organs have a common opening
A mammal that lays eggs. The platypus and the echidna are the only living forms
A group of mammals which lays eggs. The only living members of this group are duck-billed platypuses and spiny anteaters (echidnas).
Gk. monos, single + trema, hole] An egg-laying mammal, represented by the platypus and echidna.
The monotremes are the only egg-laying mammals. They include the platypus and the echidnas (e.g. the long-nosed echidna).
Monotremes (monos, single + trema, hole; refers to the cloaca) are mammals that lay eggs instead of giving birth to live young like marsupials (Metatheria) and placental mammals (Eutheria). The subclass comprises a single order, Monotremata (though sometimes the subclass Prototheria is used). An infant monotreme is known as a puggle.