So snakes have heat pits with which to detect infrared, and the ghost knifefish has electroreceptors, and the star-nosed mole has this appendage with 22 fingers on it with which it feels around and constructs a 3D model of the world, and many birds have magnetite so they can orient to the magnetic field of the planet.
Zmije imaju svoje toplinske jamice pomoću kojih detektiraju infracrveno, riba duh ima elektroreceptore, a zvjezdasta krtica ima ovaj nastavak s 22 prsta na njemu kojim osjeti okolinu i stvara 3D model svijeta, i mnoge ptice imaju magnetit pa se mogu orijentirati prema magnetskom polju planeta