Ular tidak memiliki kelopak mata, melainkan skala transparan yang melindungi mata mereka. Selain itu, mereka tuli terhadap suara di udara, dan mereka 'mendengar' dengan mengambil getaran melalui rahang mereka.
Snakes do not have any eyelids; instead, a transparent scale protects their eyes. Also, they are deaf to airborne sounds, and they 'hear' by picking up vibrations through their jawbones.
http://www.buzzle.com/articles/facts-about-snakes.html
