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(Notoryctes
typhlops)
This
animal consists of two species and is an example
of remarkable convergent evolution. Although the
Australian Marsupial Mole is not even distantly
related to the placental moles; the only thing
they have in common is the fact that they are all
mammals, the Marsupial Mole has followed a similar
evolutionary path making them very alike in
appearance. The Marsupial Mole and the African
Golden Mole are very alike.
The
body shape is well suited to moving through the
sandy soil it inhabits, with little resistance.
The Marsupial Mole has developed limbs that are
able to provide good sub-terranean propulsion. The
senses of sight and hearing are minimal, but those
of touch and smell are highly developed. The
relationship of this specialised animal with other
marsupials is much in doubt. Dentition and feet
structure perhaps suggest a common origin with the
Bandicoot family. The female mole has a pouch, of
course.
Description
The
Marsupial Mole is a small animal whose head and
body together measure about 12-15 centimetres
(5"-6"). Its body is smoothly streamlined and
tapers into a point at both ends, having no neck
narrowing. It has fine, silky fur which has a
velvety sheen. The eyes, ears and tail are
minimal. The Mole’s conical nose is covered with a
tough, horny shield. The limbs of the Marsupial
Mole are short and powerful, each foot having five
digits. It has adapted very well to burrowing as
the third and fourth fingers are large and
scoop-like, serving as versions of a pick and
shovel. The pouch opens toward the rear so that
sand is not kicked continually into it.
Fur
colourings very from yellowish white to a deep
gold.
Habitat
Two
populations are recorded.
They
are in the South-central and North-western areas
of Australia.
The
North-western colony is often listed as a second
species, Notoryctes caurinus. This mole is
pinkish/cinnamon in colour and appears to be
rather rare. ‘Recent’ sightings have been recorded
from Mt Caroline, Fregon and Warburton Range,
Western Australia.
Habits
The
Marsupial Mole lives almost entirely under ground
in semi-arid, sand dune country. It tunnels along
5 to 10 cm below the sand’s surface. Because of
the texture of the sand, tracks are left as the
burrows collapse behind them. It appears to be a
solitary animal.
Diet
Their chief diet
consists of earthworms and subterranean insects.
Reproduction
They breed in
November, producing one or two young.
Little else is known
of them, and their reported rarity may be due to
lack of sightings resulting from their excellent
camouflage and secretive behaviour
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