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What phylum includes eutherians and monotremes?
Eutherians and monotremes are in the phylum Chordata.
What are the subclasses of mammels?
They are Monotremes, marsipuals, eutherians.
Do springboks lay eggs?
No. Springboks do not lay eggs. There are only three egg-laying species of mammal the platypus, the long-beaked echidna and the short-beaked echidna. These egg-laying mammals are known as monotremes. Springboks are not monotremes, but placental mammals, or eutherians.
Does a zebra lay eggs?
No. Zebras do not lay eggs. There are only three egg-laying species of mammal the platypus, the long-beaked echidna and the short-beaked echidna. These egg-laying mammals are known as monotremes. Zebras are not monotremes, but placental mammals, or eutherians.
Do hippotomuses lay eggs?
No. Hippopotamuses do not lay eggs. There are only three egg-laying species of mammal the platypus, the long-beaked echidna and the short-beaked echidna. These egg-laying mammals are known as monotremes. Hippopotamuses are not monotremes, but placental mammals, or eutherians.
What is the difference between monotreme and other mammals?
Monotremes are the only mammals that give birth to their young in eggs
What are the three types of mammals?
The three types of mammals are:Placental mammals, or Eutherians. This is the largest group of mammals.Marsupials (often referred to as the "pouched mammals")Monotremes, or egg-laying mammals
Are most mammals eutherians?
Yes. About 94% of living mammals are eutherians.
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 are the distinguishing characteristics of Eutherians?
Eutherians are a group of mammals consisting of placental mammals plus all extinct mammals that are more closely related to living placentals (such as humans) than to livingmarsupials (such as kangaroos).
Are monotremes real?
Yes, monotremes are real.
Why are some mammals that lay eggs classified as mammals?
Monotremes lay eggs, as do reptiles. Monotremes' limbs go outward (rather than downward) from their main body, which is also true for reptiles. Monotremes lack a corpus callosum (which placental mammals have), as do reptiles. Monotremes and reptiles both have cloacas, while placental mammals have separate openings for urination and defecation. This evidence all shows monotremes to be a link between reptiles and mammals, but we now think that monotremes just evolved from an earlier branching from the mammalian tree of lineage than the marsupials and placental mammals evolved from. Monotremes are not a link between reptiles and mammals.
