http://www.ks.uiuc.edu/Research/magsense/ some animals have a sense of magnetic fields http://www.ks.uiuc.edu/Research/magsense/ http://www.ks.uiuc.edu/Research/magsense/ three ways http://www.ks.uiuc.edu/Research/magsense/ Vogels gebruiken fotoreceptoren voor magnetische oriëntatie. The Magnetic Sense of Animals http://www.ks.uiuc.edu/Research/magsense/ http://www.ks.uiuc.edu/Research/magsense/ http://www.ks.uiuc.edu/Research/magsense/ http://www.ks.uiuc.edu/Research/magsense/ http://www.ks.uiuc.edu/Research/magsense/ http://www.ks.uiuc.edu/Research/magsense/ The Magnetic Sense of Animals http://www.ks.uiuc.edu/Research/magsense/ Vogels gebruiken fotoreceptoren voor magnetische oriëntatie. http://www.ks.uiuc.edu/Research/magsense/ The Magnetic Sense of Animals http://www.ks.uiuc.edu/Research/magsense/