https://github.com/davepinch/pinchy.cc/blob/master/content/topics/religion/christianity/bible-books/matthew/chapters/matthew-7/verses/matthew-7-14/matthew-7-14-kjv.md
Pit vipers, pythons, and some boas have evolved a set of infrared sensitive receptors located in the nose of the snake. This allows them to see the body heat of prey species, much like night vision goggles.