Attachment theory is a psychological, evolutionary and ethological theory concerning relationships between humans. Many developmental specialists elaborated Bowlby's ethological observations. Attachment theory is primarily an evolutionary and ethological theory. Instead, Bateson analysed the rite from three unique points of view&colon; sociological, ethological, and eidological. This peculiar behaviour made them a privileged example for ethological theories concerning altruism among animals. The genetics of ethological isolation barriers will be discussed first. He also favored the ethological view of attachment, rooted in instinct. She specializes in ethological studies of great apes, animal intelligence, communication, and language. This concept forms the foundation of ethological research. Palace now houses one of the most interesting ethological museums in Iran. Hollander founded the Ethological Society, and was the first editor of the "Ethological Journal". Frederic Ward Putnam helped him become appointed as curator of AMNH's ethological collection (1889-1891).