I think the great apes like (chimps, oragutans and gorillas) are generally thought to be the most intelligent animals after us. This is hardly surprising considering they are our closest relatives. Chimps share 99% of our DNA for example. They can learn sign language, solve complex problems, use tools, have complex societies and have higher level of self awareness and consciousness than most animals.
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I see. But have you seen how smart orcas are? Like in the video where 3 orcas are diving repeatedly, simultaneously and parallel to each other under an ice floe a seal is resting on, to create waves that push the seal off the floe. Or the video where an orca throws a bait to some birds and waits until one of the birds comes closer to pick up the bait. He launches out the water and grabs the bird.
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Sure they are smart too. But that kind of complex problem solving and cooperation is common in chimps as well. Really “intelligence” is kind of a nebulous concept and it probably can’t be ranked anyway. Different animals have different [i]types[/i] of intelligence - you can’t give a whale an IQ test for example. The only thing we can really say is that chimps have the sort of intelligence that is most similar to ours. They are our cousins after all. Here’s an good article about chimp intelligence: https://www.nytimes.com/2007/04/17/science/17chimp.html [quote]Chimps display a remarkable range of behavior and talent. They make and use simple tools, hunt in groups and engage in aggressive, violent acts. They are social creatures that appear to be capable of empathy, altruism, self-awareness, cooperation in problem solving and learning through example and experience. Chimps even outperform humans in some memory tasks.[/quote]