Watching a gecko's pupils contract and dilate is weirdly satisfying

Most animals contract and dilate their pupils depending on the light available around them. Geckos are no exception but unlike other species the difference between those two stages are much more dramatic. They go from having cute round pupils in low light to evil narrow slits when it's too bright. » 8/11/14 7:49pm 8/11/14 7:49pm