Platypus
Ornithorhynchus Anatinus
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| Appearance and Size |
The
platypus is smaller than most people think. Males are about 50 cm long
and weigh about 1.5 kg. Females are smaller, usually about 40 cm long
and weighing about 1.0 kg.
The first thing people notice about
the platypus is its bill. The bill is very sensitive and the platypus
uses it to find food. When a platypus is in the water it blocks off its
eyes and ears to keep the water out. So it uses the bill to dig up
food such as crayfish and insect larvae. The bill is like soft wet
rubber.
Their bodies are covered in thick, dark, brown fur and is streamlined so it can move fast in the water.
It
has a broad flat tail with short stout legs, and webbed front feet,
well suited to its life in the water. The tail acts as a stabilizer,
stores fat, and is used for burrowing.
If the water is cold, the platypus can increase their body heat to keep their body temperature at 32 degrees. |
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| Adult Platypus |
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| Young Platypus |
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| Platypus Bill |
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| Special features |
Platypus can consume their own body weight in food in a 24
hour period.
The male platypus has venom strong enough to kill a small dog or
cause excruciating pain among humans.
Their spurs are connected to a venom gland in
each thigh.
Since
only the male platypus has this venomous spur, which peaks during
mating season, many people suggest it is usually used in aggressive
encounters between other male platypus.
The platypus is one of the monotremes. The two other monotremes are
Australia’s short beaked
echidna and Pupa New Guineas
long beaked echidna.
Monotremes are different because they have no teats and
lay eggs like birds even though they raise their young like mammals. |
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| Male Platypus Spur |
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| Platypus Egg |
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| Baby Platypus |
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| Habitat |
Platypus live on the east coast of Australia from far north Queensland to the freezing snows of Tasmania.
They make their home in and near fresh water creeks, slow moving rivers, lakes joined by rivers and dams.
They build a simple burrow in a river bank, just above water level and among a tangle of tree roots.
They can share their habitat with several other platypus.
During cold southern winters the platypus can hibernate in its burrow. |

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| River Bank Burrow |
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| Platypus Habitat |
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| Diet |
The
platypus is a carnivore, surviving on worms, insect larvae, flies and
small shrimps like yabbies, and other small animals that live in the
water.
Once caught, the prey is stored in cheek pouches and taken to the surface where it is ground between their toothless jaws.
It spends around 12 hours a day looking for food and needs to eat at least one quarter of its body weight each day! |

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| Platypus Diet - Yabbies |
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You can even watch a movie about the platypus if you click here.
This project is by Annie Serisier
Clarence Valley Anglican School
Grafton, NSW, Australia
Year 3 |
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