Reasons why human beings are unique
In the same way that early birds developed feathers before
they could fly, we had the mental tools for complex language before we
developed it.
We started with language-like symbols as a way to represent the world
around us, he says. For example, before you say a word, your brain first has
to have a symbolic representation of what it means. These mental symbols
eventually led to language in all its complexity and the ability to process
information is the main reason we are the only hominin still alive, Tattersall
argues.
It's not clear exactly when speech evolved, or how. But it seems likely that it
was partly driven by another uniquely human trait: our superior social skills.
While both chimps and humans cooperate, we will always help more
Comparative studies between humans and chimps show that while both will
cooperate, humans will always help more. Children seem to be innate
helpers. They act selflessly before social norms set in. Studies have shown
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