...comments on language, tool making, etc.
Anthrocentrism is what we do. It's hard, if not impossible, to get outside of our humanity when observing the world around us. We filter through the human lens. Our closest genetic cousins, the Bonobo chimps, exhibit behavior that is very "human like". But are they intelligent?... of course they are. Do they exhibit intellect??... not so we can tell. Philosophy, art, music
, poetry and such are in the realm of intellect.
Cetaceans??... Whales "sing"... is it music
Do dolphins make art??... maybe their movements while swimming are a form of dance. Do they create poetry??... Who knows?
If we use humans as the benchmark for measuring intelligence, we may never know the answers to these questions.
I do know this... I got hooked on sailing because the first time I ever went out, we encountered a pod of dolphins surfing our bow wave. As I lay on the deck
gazing into their eyes, I had the definite sense that they are as intelligent as we are. That experience changed my life forever and I am eternally grateful to the dolphin race