Nictitating Membrane Partially Covering Brown Pelican Eye. The nictitating membrane, or nictating membrane, is a translucent membrane that forms an inner eyelid in birds, reptiles, and some mammals. It can be drawn across the eye to protect it while diving in the ocean, from sand and dust and keep it moist. La Jolla, California, USA
Species:
Brown Pelican,
Pelecanus occidentalis,
Pelecanus occidentalis californicusLocation:
La Jolla,
CaliforniaImage ID:
40253Format: Digital 4:3
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