Unusual friendship of sperm whales and Dolphin

German biologists during the expedition to the Azores in 2011 witnessed the unusual friendship of sperm whales and a Dolphin with a curved spine.

Scientists say that sperm whales (Physeter macrocephalus) usually do not take the group of other species. However, in 20 km from the island of Pico, the scientists within 8 days observed a group comprised of an adult Dolphin-bottlenose Dolphin (Tursiops truncatus).

The group consisted of several adults and calves, Dolphin, according to the observations of researchers, was a full-fledged member. Scientists believe the Dolphin’s curved spine could be the reason for its appearance in the flock of sperm whales — perhaps it could affect his speed, which he got separated from his group.

The researchers also suggest that it could be a good companion for young sperm whales and help protect the flock from natural enemies and sperm whales, and killer whales. Previously, sperm whales were observed interspecies communication.

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