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.
Șerpii au senzori termici cu care detectează infraroșul, peștele-cuțit are electroreceptori, cârtița cu bot-stea  are un apendice cu 22 de degete cu care pipăie împrejur construind un model 3D al lumii, păsările au magnetit cu care se orientează în câmpul magnetic terestru.