Passage Summary: When a trainer asks two dolphins to be creative, they both do the same new trick at the same time, like jumping or waving their tails, without being told which trick to pick.

Conclusion: Dolphins possess advanced cognitive abilities, such as language and planning, rather than just performing learned behaviors.

Reasoning: When prompted to be creative together, dolphins coordinate complex and varied actions simultaneously without specific cues for those actions.

Analysis: The argument relies on the assumption that the dolphins' ability to synchronize a 'creative' act requires internal communication or planning. To strengthen this claim, we should look for an answer that rules out simpler explanations, such as the dolphins having a pre-established routine for the 'creative' signal. If we can show that the dolphins are truly deciding on the specific action in the moment, the case for higher cognitive functions becomes much more robust.