Early number sense plays role in later math skills

We know a lot about how babies learn to talk, and youngsters learn to read. Now scientists are unraveling the earliest building blocks of math—and what children know about numbers as they begin first grade seems to play ...

The evolutionary advantage of being friendly

We've all heard the term "survival of the fittest," which scientist Charles Darwin famously coined to explain how organisms with heritable traits that give them an advantage—such as avoiding predators or beating out others ...

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