And once upon a time man was a single-celled organism... Yep, it makes us wish to continue the dialogue about "our lesser brothers." After all, what an amazing path has mankind traveled! From a cell, capable and aimed only at reproduction, to a creature that regularly thinks about the meaning of its existence. Especially at night, when you can't sleep😁 Do you know how long it took this path, the path of the living world to intelligent man? About 4,100 million years - that's when the first life appeared on the planet! Austrolopithecus appeared 4 million years ago, the upright man 2 million years ago, and already 40 thousand years ago the intelligent man was present almost all over the Earth.