Impatiens on Nostr: *brain versus body size as in whales are about as intelligent as cows, humans are ...

*brain versus body size as in whales are about as intelligent as cows, humans are smarter because their brain mass is larger versus body size, dolphins are about equivalent to dogs when you factor out the extra space for sonar/acoustic abilities, and aquatic rays have a very large brain/body mass ratio that has not yet been described by science.

My maternal uncle was once diving in kona hawaii with who knows what substances in his system and had also some oxygen issue with his tanks and lived to tell the story that some species of aquatic ray circled around him until he came up to a ocean depth to regain consciousness.