Author Topic: Why haven't our irises evolved to close up entirely when facing BRIGHT sunlight? (Read 1510 times)
SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums
© 2000–2016 - The Naked Scientists®
The Naked Scientists® and Naked Science® are registered trademarks. Information presented on this website is the opinion of the individual contributors and does not reflect the general views of the administrators, editors, moderators, sponsors, Cambridge University or the public at large.