The Secret Service shot a man near the White House on Sunday shortly after midnight after an “armed confrontation” with law enforcement, according to the agency. The encounter happened near ...

Look at one and then the other. Can you tell which brain is female and which is male? You can't. Humanity has been hunting for sex-based differences in the brain since at least the time of the ...

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There is only a weak link between brain structure and behavioral variations, with this weak relationship largely explained by brain size, because male brains on average are 10 to 15 percent larger ...

We’re not here to compare species, though. Instead, we’re trying to answer a more common question: How can you tell the difference between a male and a female guinea fowl? Well, we’ve identified four ...