Don't have an easy answer to any of your questions, but on #4 about eye separation...the difference in eye location appears to relate to predatory vs. prey species. Birds are a great example. Predatory birds like hawks, eagles, owls, etc. tend to have their eyes located on the front of their heads...so there is overlap between the visual fields of the two eyes. This adds to depth perception. Prey species like robins, finches, etc. have their eyes displaced to the sides of their heads...this detracts from depth perception but gives them a larger field of vision (so they can detect that nasty predator coming at them from behind).
John -- John Serafin Psychology Department Saint Vincent College Latrobe, PA 15650 john.sera...@email.stvincent.edu ________________________________ From: <tay...@sandiego.edu> Reply-To: "Teaching in the Psychological Sciences (TIPS)" <tips@acsun.frostburg.edu> Date: Tue, 20 Oct 2009 12:39:27 -0400 To: "Teaching in the Psychological Sciences (TIPS)" <tips@acsun.frostburg.edu> Conversation: [tips] A slew of student questions Subject: [tips] A slew of student questions I call on my biological psychologist tipster friends for some answers: (1) Are there gender differences in the numbers of rods and cones in the retina? (2) Is there a "purpose" to having different eye and hair color? (3) Can sleep deprivation or a high fever "cause" visual hallucinations? (4) Eye separation in birds, camelleons and rabbits? Gosh I don't remember the exact student question; that was all I had time to jot down. Drat. Maybe it will mean something to someone on the list.... Thanks Annette Annette Kujawski Taylor, Ph.D. Professor of Psychology University of San Diego 5998 Alcala Park San Diego, CA 92110 619-260-4006 tay...@sandiego.edu --- To make changes to your subscription contact: Bill Southerly (bsouthe...@frostburg.edu) --- To make changes to your subscription contact: Bill Southerly (bsouthe...@frostburg.edu)
