They controlled for the birds' age, sex, body size and species. And they found that the hunted specimens' brains were actually five percent smaller, on average, than the brains of birds that died by other means. " The surprising thing is that, if you make a similar kind of analysis of liver or heart size, there is absolutely no difference there. So this is specific to the brain ”.
PTELook at the text below. In 35 seconds, you must read this text aloud as naturally and clearly as possible. You have 35 seconds to read aloud.
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Beginning in 35 seconds.