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Science 1 July 1977:
Vol. 197. no. 4298, pp. 79 - 81
DOI: 10.1126/science.867054
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Articles

Science, Vol 197, Issue 4298, 79-81
Copyright © 1977 by American Association for the Advancement of Science

articles

Stereopsis in the falcon

R Fox, SW Lehmkuhle, and RC Bush

Stereoscopic depth perception is demonstrated in the falcon, a non-mammalian with binocular vision. This result complements recent physiological evidence for binocular interaction in the bird visual system, and suggests that stereopsis may be a general attribute of vertebrate vision and not an exclusive product of mammalian evolution.


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