title: Possible occurrence of contact calls in all‐male groups of free‐ranging beluga whales
abstract: Abstract Social toothed whales are known to produce specific vocalizations that may serve for individual or group recognition and maintaining cohesion among group members. In beluga whales Delphinapterus leucas , these vocalizations referred to as “contact calls” are relatively long duration, repeated stereotyped broadband sounds. Although these calls are thought to be critical in mother‐calf communication, they are utilized by individuals of different ages and sex. We investigated possible occu
journal: Journal of Zoology