‘Amongst other animals, and specifically amongst vertebrates, ethologists classify violent behavior (aggressive posturing, attacking, hurting, killing) into two types: predatory and territorial.’
‘Recently, ethologists have applied the study of animal behavior to an increasing number of problems relating to conserving rare, declining, and threatened animal species.’
‘Because of the broad range of his interests, John was always alert to the ways in which concepts and data from other fields might be useful to ornithologists and ethologists.’
‘For example, ethologists generally agree that play in young animals is not escapist, but adaptive.’
‘Initially trained as a classical comparative ethologist, he learned the disciplines of meticulous observation and objective description.’
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