The Glasshead Barreleye (Rhynchohyalus natalensis) has bidirectional eyes. These fish can see images of things in the water column above them through their two, primary eyes. Using a curved, mirror-like lens and retna below each primary eye, they can also see bioluminescence below them. These fish live in the zone where light is faint or the twilight zone. The optics of the fish are encased in a jelly-like clear tissue. The species does not apparently move with the deep scattering layer each day, remaining in the twilight zone day and night. This specimen was roughly four inches total length and was trawled at depths between 600 and 200 meters depth in the Gulf of Mexico, May 2017. Image courtesy of the DEEPEND project. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Fenolio, Dante |
Bildgröße: | 6000 px × 4000 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |