More qualified medical providers is a good thing, right? Apparently not, or at least, not always. Researchers have found that cities with many paramedics in first response settings have poorer cardiac arrest outcomes
. Cities whose first responders were less trained, even when paramedics followed soon after, had better outcomes. I can guess at reasons here - excessive care, poorer coordination, etc., but this is a really puzzling result.
Speaking of numbers, it seems that pigeons, and maybe even humans, think in logarithms
. Birds taught to distinguish between long and short LED flashes seemed to be reacting as if the longer times were more 'compressed' than shorter - like a log scale. I wonder if this works for object counting as well?