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On average, do smaller animals have senses inferior to those of bigger animals? I ask because it seems like a somewhat logical assumption: smaller eyes would in theory collect less light, and smaller ears would in theory collect less sound.
Or is size just irrelevant?
Size is not likely to have anything to do with sensory acuity. A simple example can be seen in the fact that rodents have much more sensitive sense of smell than humans, and some birds have much sharper visual senses than humans. It has much more to do with the number of olfactory/light sensors, sensory pathways to the brain and how that information is processed by the brain (i.e how much priority is assigned). Sensory organ size per se is less relevant (think of elephant ears).
