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Monotremes (/ˈmɒnətriːmz/) are
mammals of the
order Monotremata. They are the only
group of
living mammals that lay eggs,
rather than
bearing live young...
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Echidnas (/ɪˈkɪdnəz/),
sometimes known as
spiny anteaters, are quill-covered
monotremes (egg-laying mammals)
belonging to the
family Tachyglossidae /tækiˈɡlɒsɪdiː/...
- the five
extant species of
monotremes,
mammals that lay eggs
instead of
giving birth to live young. Like
other monotremes, the
platypus has a
sense of...
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Steropodon is a
genus of
prehistoric platypus-like
monotreme, or egg-laying mammal. It
contains a
single species,
Steropodon galmani, that
lived about...
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based on
reproductive techniques: egg-laying
mammals (yinotherians or
monotremes - see also Australosphenida), and
mammals which give live
birth (therians)...
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living monotremes, the
platypus and the echidnas, as well as
their closest fossil relatives, to the
exclusion of more
primitive fossil monotremes of uncertain...
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family of
early monotreme mammals known from the
Cretaceous of Australia.
Steropodon was
initially placed in the
crown group monotreme family Ornithorhynchidae...
- All
modern mammals give
birth to live young,
except the five
species of
monotremes,
which lay eggs. The most species-rich
group is the
viviparous placental...
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exceptions are reported) and
epipubic bones are present.
Marsupials (and
monotremes) also lack a
gross communication (corpus callosum)
between the
right and...
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sometimes specific to only one
species (as
observed in
certain bird and
monotreme species). One
logical way to
equalize gene
expression amongst males and...
