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26 de nov. de 2009 · The hammerhead shark’s distinctive head gives it excellent binocular vision. Even though its eyes are set widely apart, their fields of vision overlap to a greater degree than those of...
19 de oct. de 2016 · Dive into this 360° video and go face to face with a curious great hammerhead shark. Subscribe: http://bit.ly/NatGeoSubscribe ...more.
15 de dic. de 2009 · In this study we tested the ‘enhanced binocular field’ hypothesis (that proposes enhanced frontal binocularity) by comparison of the visual fields of three hammerhead species: the bonnethead shark, Sphyrna tiburo, the scalloped hammerhead shark, Sphyrna lewini, and the winghead shark, Eusphyra blochii, with that of two carcharhinid species ...
27 de nov. de 2009 · She found that hammerhead eyes, though far apart, have the greatest overlap in their fields of view. The winghead shark has a 48 degree arc in front of it that's covered by both eyes, which must give it exceptional depth perception.
15 de dic. de 2009 · The team tested the field of view in individual shark's eyes by sweeping a weak light in horizontal and vertical arcs around each eye and recorded the eye's electrical activity.
4 de dic. de 2009 · Additionally the study identified that hammerhead sharks have an astonishing 360 degree view of their surrounding environment in the vertical plane, seeing all that’s above and below, as well as an excellent stereo rear-view.
The scalloped hammerhead had a massive binocular overlap of 32 deg. in front of their heads (three times the overlap in the pointy nosed species) while the bonnet head had a respectable 13 deg....
