Creepers' peepers: Why animals' pupils have different shapes

There's a reason why the domestic cat's pupil has its distinctive, vertical slitted shape and the grazing goat's its horizontal, flattened look. In both cases, the eye's shape has evolved to help its owner navigate everyday life. The cat needs to be able to hunt at night with precision; the grazing...

via L.A. Times - Science http://ift.tt/1J5mSkD