Inside the Eye

Southern ground-hornbill (Bucorvus leadbeateri)
 David Liittschwager / National Geographic

In the February issue of National Geographic Magazine Ed Yong discusses the anatomy and evolution of eyes, assessing how a creature’s environment contributes to the function, form and appearance of its eyes. Spectacular close-up photos by David Liittschwager accompany the article.

Learn how eyes evolved, and find out which animal's eye biologist Tom Cronin would look through if he had the chance:

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Via TwistedSifter