There are some important questions in this graph: 1) Why the maximum size of reptiles' class is more than the maximum size of other classes? (Because air's pressure was high at that time when they were living) 2) Why the appearance of a new class of animals, always get started from small bodied animals of the previous class, not from the bigger ones? 3) How is the foreseen next coming class of animals? 4) How is the (4+1)-chambered heart?
Paper 23:
The graph of land animals' size during the time
ramin Amir mardfar
Paper 24
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