Even at the dawn of their history, people drew attention to the fact that, unlike animals, they have speech, consciousness, the ability to work, walk on two legs. And they even tried to compare themselves with animals, which we can judge by the myths of tribes and peoples, due to the different conditions of those who lagged behind in their development. Dayaks - the inhabitants of the island of Borneo - believed that orangutans were once people, but stopped working and talking and therefore lost their human appearance.