Lungs
To live on land, animals need lungs that allow them to extract oxygen from the air. But the moment came when many living things learned to breathe atmospheric air.
Amphibians
The first animals that populated the land protruding from the water were amphibians. They never went far from the water, because they laid eggs in the water to breed. Frogs living in ponds are doing exactly the same thing now.
These were:
- Eriops
- Dolochosome
- Ichthyostega
- Urocordillus
- Diplocaulius
At a time when the first animals came out of the water, fish also changed a lot. Most of them have already become similar to modern fish.
Insects
In the ancient forests, the sound of wings has already begun to be heard. These were some creatures, the descendants of aquatic scorpions and other species that had wings, and they began to fly. So insects arose. There were no birds yet. The most ancient insects were dragonflies. In some of them, the wingspan reached half a meter.
How were the first amphibians born?
Perhaps some fish acquired the ability to breathe on land for a short time when their pond was dry. They crawled on the ground in search of water, so as not to die. Some of them gradually learned to live on earth.
Fossil fossils
As for the primitive amphibians and the first reptiles, we get all the information about how and when they appeared, thanks to the fossils found.
