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Monotremes
Monotremes are one of the three forms of mammals. All mammals suckle their young, have three middle-ear bones, and have hair.
Monotremes are the only mammals that lay eggs. They also have extra bones in the shoulder girdle. Their legs have spurs at the sides. These have no function excepting for in male platypuses; in male platypuses they contain venom. Monotremes have no nipples and no corpus callosum. Their body temperature is only about 90 degrees Fahrenheit (as opposed to 95 in marsupials and 99 in placental mammals). They are toothless as adults. They are the only mammals that can electrolocate and the only mammals with full cloacas.
An example of a monotreme is the duck-billed platypus.
Written by a placental mammal...
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What make monotremes extraordinary creature?
Monotremes are extraordinary because they are egg-laying mammals, with the young suckling mothers' milk. Apart from echidnas and platypuses, no other mammals lay eggs.
Are vertebrates that produce milk for their young are called?
Mammal.All mammals feed their young on mothers' milk. This is the defining characteristic of a mammal, and it is a characteristic not shared with any other vertebrate.Mammals include placental mammals, marsupials and monotremes (egg-laying mammals).
Are monotremes warmblooded?
Yes monotremes are warm blooded , they are like other mammals
How are monotremes and other mammals the same?
Monotremes are mammals; therefore they share many similarities: they are warm-blooded, have hair, possess high metabolisms - all characteristics that define what a mammal is. The defining characteristic of a mammal is that it suckles its young on mothers' milk, and monotremes certainly do this.The key difference between the two is that monotremes reproduce by laying eggs rather than give birth.
What is the subclass of mammal species in which females lay eggs like non-mammalian vertebrates?
This subclass/infraclass/order is called Monotremata, and mammals within it are called monotremes. Monotremata consists of the Platypus and two species of echidnas. There are many other characteristics that set monotremes apart from other mammals.
What are echidnas classed as?
Echidnas are classed as mammals. Specifically, they are monotremes, or egg-laying mammals. They are classified as mammals despite being egg-layers, because the young suckle mothers' milk. This is the defining characteristic of all mammals. Like most other mammals, they also have fur.
What is the difference between monotreme and other mammals?
Monotremes are the only mammals that give birth to their young in eggs
What are monotreme mammals?
Monotremes are mammals which lay eggs, as opposed to all other mammals which give birth to live young. The only mammals which are monotremes are the platypus and short-beaked echidna of Australia, and the long-beaked echidna of New Guinea.
Why are monotremes classified as mammals if they lay eggs?
Monotremes are still classified as mammals because the young suckle on mother's milk. No other animal among the vertebrates does this - only mammals. They are also warm blooded and breathe through lungs, like mammals.
Are mammals born in eggs?
Most mammals are not hatched from eggs. Only the monotremes, or egg-laying mammals, reproduce by external eggs. Monotremes include just the platypus, the long-beaked echidna and the short-beaked echidna.
How are momtremes different from all other mammals?
Monotremes lay their young in eggs.
Why are the platypus and echidna unusual mammals?
The platypus and echidna are unusual mammals because they are the world's only known monotremes, i.e. egg-laying mammals. Though egg-layers, they are classified as mammals because the young suckle mothers' milk.
