eyesight /oss/taxonomy/term/2613/all en Owls Don't Have Eyeballs /oss/article/did-you-know/owls-dont-have-eyeballs <p>You know how we (humans) have eyeballs? Well, owls don’t. <a href="https://www.nationalgeographic.org/media/birds-eye-view-wbt/">They have eye tubes or cylinders</a>, rod-shaped eyes that do not move in their sockets as eyeballs do. Instead, owls have to move their bodies or heads in order to look around. Since moving their torsos would likely make noise that would alert their prey to their presence, owls have evolved to have necks that can spin up to 270° essentially silently.</p> Thu, 11 Jan 2018 18:39:58 +0000 Ada McVean B.Sc. 6879 at /oss What is macular degeneration? /oss/article/health-you-asked/what-macular-degeneration <p>You probably won't like this advice. Eat more spinach! I can hear the yucks already, but listen up and maybe you'll see things my way. And seeing is what we're talking about. I bet that Popeye didn't suffer from age related macular degeneration, a disease that affects about 20% of people over the age of 65.</p> Tue, 06 Nov 2012 18:21:54 +0000 Joe Schwarcz PhD 1768 at /oss