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As Scarlett Howard taught honeybees to do arithmetic, they showed her how fundamental numbers might be to all brains.
Beneath our awareness, the brain lets certain kinds of stimuli automatically capture our attention by lowering the priority of the rest.
A brain circuit that suppresses distracting sensory information holds important clues about attention and other cognitive processes.
A report that a fish can pass the “mirror test” for self-awareness reignites debates about how to define and measure that elusive quality.