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bottlenose whale | Habitat & Facts | Britannica
All rights reserved. A bottlenose dolphin, with an S-shaped spinal deformity, is seen here rubbing against a sperm whale. In , behavioral ecologists Alexander Wilson and Jens Krause of the Leibniz-Institute of Freshwater Ecology and Inland Fisheries in Germany were surprised to discover that a group of sperm whales Physeter macrocephalus —animals not usually known for forging bonds with other species—had taken in an adult bottlenose dolphin Tursiops truncatus. The researchers observed the group in the ocean surrounding the Azores map —about 1, miles 1, kilometers off the coast of Lisbon, Portugal —for eight days as the dolphin traveled, foraged, and played with both the adult whales and their calves. When the dolphin rubbed its body against the whales, they would sometimes return the gesture. Among terrestrial animals, cross-species interactions are not uncommon.