The world looks very different from behind the horizontally-elongated pupils of many grazing and browsing animals, like goats. These pupils, situated on either side of the head, let horizontal bands of light in that give the goat a near-360...
Why goats have weird eyesGene KimJessica Orwig
Mantises have compound eyes composed of thousands of light-sensing units. When some are aimed at you, they appear black because they’re absorbing most wavelengths of incoming light – but there’s no actual opening. So, why do we have round pupils? Elongated pupils help sharpen certain ...