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No: dolphins are placental mammals.

The only monotremes are platypuses and echidnas.

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13y ago

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Can dophins lay eggs?

Dolphins are mammals and, with the exception of monotremes, all mammals give birth to live young.


Are dolphins placentals?

Yes. Dolphins are placental mammals because they do not have a pouch like most marsupials, and they do not lay eggs like the monotremes.


Do dolphins have placentas?

Yes, they do; the sub-class Eutheria (placental mammals) includes all orders of mammals except monotremes (platypuses and echidnas) and marsupials (opossums, kangaroos, etc.). Cetaceans (whales, dolphins and porpoises) are included.


Are monotremes real?

Yes, monotremes are real.


What are some examples of mammals?

All mammals except for monotremes are viviparous. Monotremes are platypuses and echidnas: therefore, any mammal that is not a platypus or echidna is viviparous. Actual examples would be cats, dogs, horses, kangaroos, koalas, gerbils, gophers, beavers, dolphins, whales, rats, shrews, porcupines, armadillos, etc.


Is a blue whale a monotremes?

No a Blue Whale is Not a monotremes.


Do monotremes eat their young?

Monotremes never eat their young.


What mammal is a monotreme?

Monotremes are egg laying mammals, the platypus and the echidna are the only two monotremes.


Do monotremes have lungs or gills?

Monotremes are mammals; therefore they have lungs, not gills.


What phylum includes eutherians and monotremes?

Eutherians and monotremes are in the phylum Chordata.


Do monotremes have short internal development?

No, monotremes do not have short internal development.


Monotremes is a term used for?

Monotremes are mammals that lay eggs, such as the Echidna and the Platypus.