I was thinking very same issue for some time. Underwater species will have limitation to advance their Intelligence due to not having access to LAND to make all

I was thinking very same issue for some time. Underwater species will have limitation to advance their Intelligence due to not having access to LAND to make all kind of TOOLS which led to Human Spices advancement . It seems we have a kind of proof at this time planet Earth. 'Long-finned pilot whale' have '37 Billion' Cerebral cortex Neurons , where as Human Spices have 21 Billion . I think due to their Water environment WHALE did not become the dominant spices on EARTH but Humans became . https://en.wikipedia.org/wiki/List_of_animals_by_number_of_neurons https://en.wikipedia.org/wiki/List_of_animals_by_number_of_n...