The first life evolved in the Pre-cambrian
period. Trilobites lived at a astonishing 552mya.
To the very first traces of life, 3.2-1.4billion years ago.
So much life evolved, because 4billion years ago, Theia another planet,
smashed into earth, and the 2 planets fused, creating a brand new world.
Our world even today, Theia lies right beneath our feet.
And slowly our oceans formed during 3.8billion years ago.
Try thinking you’re life in the Pre-cambrian time, so much comets
smashed into Earth. Comets stopped smashing by 3 billion years ago.
Earth is so old, 4.6billion years old, the more than a thousand
animals maybe, have not been discovered.
If Earth was not smashed by Theia, there will be no life,
and luckily theia smashed into earth.
Trilobites appeared at the end of the Precambrian period.
Trilobites are the first animals with skeletons
Slowly Precambrian, ends, Cambrian continues.
This is what we are looking at in the next period.