early developments of biological inclusive fitness theory and the derivative field of sociobiology, encouraged some sociobiologists and evolutionary psychologists to approach human kinship with the assumption that inclusive fitness theory predicts that kinship relations in humans "are indeed" expected to depend on genetic relatedness, which they readily connected with the "genealogy" approach of early anthropologists such as morgan (see above sections). however, this is the position that schneider, sahlins and other anthropologists explicitly reject.