How are bonobos very different from common chimpanzees?

A lot of people say that bonobos are very different from common chimpanzees (despite being chimpanzees themselves). How are they different? Bonobos look like common chimpanzees to me. Also many people online have said that bonobos and common chimpanzees have the same type of biologically relationship as lions and... show more A lot of people say that bonobos are very different from common chimpanzees (despite being chimpanzees themselves). How are they different? Bonobos look like common chimpanzees to me.

Also many people online have said that bonobos and common chimpanzees have the same type of biologically relationship as lions and tigers. Aren't lions and tigers very different species from each other?
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