A bottlenose dolphin named Fraggle carried her dead calf on her back for several days off the southern coast of Western Australia [1, 2, 3].

The event has drawn international attention as it provides a visible example of complex emotional processing in non-human animals. Researchers said the behavior is linked to mourning and grief within dolphin populations [1, 3, 5].

Fraggle was filmed in the Indian Ocean supporting the body of her calf, which was two weeks old at the time of death [3, 4]. The footage captured the mother refusing to let go of the calf, keeping it balanced on her back while swimming [4].

Reports on the exact duration of this behavior vary. Some sources said the mother carried the calf for more than six days [3], while other reports indicate the period lasted 11 days [1].

This type of behavior is rare in the wild and offers a glimpse into the social bonds and emotional depth of cetaceans. The incident occurred earlier this month and was documented by observers along the Western Australian coastline [1, 2, 5].

Marine biologists said that dolphins often exhibit social behaviors that mirror human emotional responses to loss. By carrying the deceased calf, the mother may have been attempting to protect or maintain a connection with her offspring, a process that highlights the cognitive complexity of the species [1, 3, 5].

Researchers said the behaviour is linked to mourning/grief in dolphins

This incident underscores the capacity for grief in highly intelligent marine mammals. While animal behavior is often interpreted through a human lens, the prolonged physical attachment to a deceased offspring suggests a biological and emotional drive to mourn that transcends basic instinct, providing further evidence of the complex social structures found in bottlenose dolphins.