They controlled for the birds' age, sex, body size and species. And they found that the hunted specimen’s 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."
Viola__G
They controlled for the birds' age, sex, body size and species. And they found that the hunted specimen’s 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."