Linguists Argue over Language Origins
Where on earth did humans first speak?
According to a 2011 study published in Science, evidence points to language beginning in Africa, which goes along with the very popular "out of Africa" story of human origins.
Octopus Cold Adaptation Surprises Scientists
Octopuses are not warm-blooded animals, yet the speed with which their nerves transmit signals depends on temperature. So how do those that live and move in sub-zero Antarctic waters function just as well as those inhabiting warm, tropical waters? The answer surprised researchers.
Why God Created Large, Sharp Teeth
Nineteenth-century English poet Alfred Tennyson famously described nature as "red in tooth and claw."1 But were claws and teeth originally intended to draw blood, or were they used to eat vegetation?
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