We assume that ancient people lived in caves, but that there is no evidence

Cave predki

Cavemen lived in caves, right? In the end, that's why they call them. This example sampling bias, i.e. the sample which is made in such a way that some members of the population intended to be less likely included in the sample than the other. This is called the caveman.

Most of all we know about the cavemen, known for the rock paintings in the caves. However, this does not mean that our ancestors did not draw outside the caves. Figures on something, exposed to natural phenomena, would not have survived to the present day and it is obvious that all carved on a tree too would disappear.

For this reason, all that is left from that era is in the caves. Similarly, traces of fire, burials and the like, too, remain intact in the caves to the present day. The truth is that scientists are not sure exactly where our ancestors lived. Prehistoric people associated with caves because all the data on them are preserved in caves, not necessarily because most of them lived in caves for most of his life.

via factroom.ru