> I heard somewhere that the reason chickens (which have eyes on > the opposite sides of their heads, giving binocular vision a > different meaning) bob their heads up and down is to get a 3D > perspective.
Check out egrets when they are fishing--definitely triangulating, maybe refraction-artifact-cancelling. JPK ******************************************* Jacob Pearson Keller Northwestern University Medical Scientist Training Program cel: 773.608.9185 email: j-kell...@northwestern.edu *******************************************
