Whales learn, teach, cooperate, scheme, and grieve.
A study in brains of two baleen species, humpback and finback whales, revealed brain structures similar to our own. They contained large concentrations of spindle cells. These cells make us human because their link to higher cognitive functions like self-awareness, a sense of compassion and linguistic expression.
Whales evolved the same highly specialized neurons as many as 15 million years before humans did, a phenomenon biologists refer to as parallel evolution.
Read more about whakles here and paragraph 38 on the same page.