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Chimpanzees and horses have brains that are similar in size.
A sidewheeler on the Mississippi. In 1856 Samuel Clemens became an apprentice to a steamboat pilot a
Early in the twentieth century, when malnutrition was common, companies such as this one advertised
In middle childhood, children are increasingly able to understand other people’s thoughts, ...
Despite the globe’s vast social change, people all over the world continue to make race a ...
The energy set-point view that is the basis of many people’s thinking about hunger and eating.