The platypus and the short beaked echidna. The platypus a venomous egg laying duck billed amphibious mammal is one of the strangest creatures in the animal kingdom.
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Monotremes are not a very diverse group today and there has not been much fossil information known until rather recently.
Mammals in australia that lay eggs. They lay eggs instead of giving birth to live young. Duck billed platypus ornithorhynchus anatinus swimming underwater photograph. Two of the five known living species of monotreme occur in australia.
These creatures are monotremes or egg. In addition they lay eggs rather than bearing live young but like all mammals the female monotremes nurse their young with milk. Their legs are on the sides of their bodies unlike other mammals whose legs are positioned under their bodies.
Monotremes are mammals with a unique method of reproduction. They are the platypus often incorrectly called the duck billed platypus and the short beaked echidna. Monotremes are traditionally referred to as the mammalian subclass prototheria.
A female echidna possesses a pouch in the body where she lays an egg and it takes almost 10 days for the egg to hatch. Egg laying mammals belong to a group called monotremes. The baby is so small that it needs to spend three more months with mother in the pouch and it is one of the prominent egg laying mammals facts.
Platypus fossils and dna suggest all mammals started out as venomous egg layers. Their bodies maintained some reptilian traits such as a cloaca. After hatching a very small sized baby echidna comes out of the egg.
The duck billed platypus and the spiny anteater also known as the echidna. There are two australian mammals which lay eggs. Monotremes are one of the three main groups of living mammals along with placentals and marsupials.
All of them are found only in australia and new guinea. They instead excrete milk through pores that their young lap from. In some ways monotremes are very primitive for mammals because like reptiles and birds they lay eggs rather than having live birth.
There are only two known species of egg laying mammals on the planet. Beside egg laying monotremes possess other traits that separate them from other mammals. The monotremes are typified by structural differences in their brains jaws digestive tract reproductive tract and other body parts compared to the more common mammalian types.
They do not have teats to nurse their young. Both species are found in new guinea australia and tasmania.
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