>>713952791
1. Orcas and dolphins both have language and even have dialects.
2. Dolphins have been documented using sponges to dig in the sea floor so they don't hurt their beaks
3. Orcas have been documented wearing fish for fun
4. Orcas even have some pretty "intelligent" rituals, like one orca mother whose calf died young. She carried her dead daughter to roughly where she was born, nearly starving to death in the process.
5. Dolphins and orcas have both been documented using intelligent pack hunting tactics
6. Cetaceans all engage in play (usually to the detriment of other animals)
7. Dolphins are known to poison themselves with pufferfish venom to get high

Cetaceans are every bit the equal of chimps/orangutans/gorillas.