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15 agos 180000000 anni a. C. - Monotremes split from other mammals

Descrizione:

Monotremes give birth externally, laying eggs instead of carrying a child inside a mother's body. They also differ structurally in several regards from other mammals, such as in the digestive and reprotductive systems. With some exceptions, most of these are extinct today.

Aggiunto al nastro di tempo:

Chordate Evolution over Geologic Time

ByZahur Ashrafuzzaman
26 gen 2018
2
0
1551

Data:

15 agos 180000000 anni a. C.
Adesso
~ 5883516 years ago
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