Cetaceans are highly intelligent and social creatures and are a good candidate for research paper on behavioral ecology.
Since there has been a lot of research done on cetacean behaviors, especially in species such as the Bottlenose dolphin (Tursiops truncatus) and the Killer whale (Orcinus orca), it shouldn't be hard to find information to write about.
One particularly interesting behavior that Odontocetes (toothed whales) have is called echolocation or "bio-sonar" and the hypotheses regarding the evolution and adaptive significance of this behavior are very interesting.
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