On the spiritual level, people are described as being able to use the concept of various souls, which are considered to be related to the divine power or existence in religion. In cultural anthropology, man is defined as a creature who can use language, has complex social organization and scientific and technological development, especially can establish groups and institutions to achieve mutual support and help.
Biological definition
Desmond Moliis, a British zoologist and human behaviorist, nicknamed human beings "naked apes" and wrote down the origin of human behavior from many angles. From Ape to Man, written by Engels, represents the classic study of the origin of man by Marxism.