I'm a cognitive scientist. Intelligence is such a badly defined concept, it's almost useless to reason about "intelligence". In humans, intelligence is often d

I'm a cognitive scientist. Intelligence is such a badly defined concept, it's almost useless to reason about "intelligence". In humans, intelligence is often defined as "what is measured by an IQ test", which obviously doesn't work for either babies or animals. So while you can say "some dogs can learn to understand hundreds of words, just like most babies", you can not really say "being able to tell words/people/emotions apart means an organism is intelligent"