What animals have dominated the Earth?
| October 31, 2020 | Education
Ancient reptiles gave rise to birds and mammals, in which there was a complication in the structure of the nervous system and sensory organs, a four-chambered heart, a more perfect respiratory system, a constant body temperature, increased metabolic rate, etc. These progressive changes determined a high level of organization and contributed to a wide resettlement of birds and mammals on Earth.
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