However, a team of researchers have found that sponging dolphins end up with some genetic similarities because the calves also inherit DNA from their mothers. It is also likely that sponging dolphins are descendants of a female dolphin that first developed the innovation.
Bottlenose dolphins live in groups typically of 10–30 members, called pods, but group size varies from single individuals up to more than 1,000. Their diets consist mainly of forage fish. Dolphins often work as a team to harvest fish schools, but they also hunt individually. Bottlenose dolphins also use sound for communication, including squeaks and whistles emitted from the blowhole and sounds emitted through body language, such as leaping from the water and slapping their tails on the water surface.
Source: Digital Journal
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