Me and Dennis Hansen from the Zoological Museum of Zürich wondering how to reconstruct the pupils of the baby sauropod Toni from the Howe-Stephens Quarry. We are open to suggestions.

#zoologischesmuseumzürich #morrisonformation #jurassic #mesozoic #dinosaur #dinosaurs #dinosaurier #dinos #sauropods #dinosaurskeleton #museums #fossils #paleontology #paleontologymuseum #paleoart #paleoreconstruction #animaleyes

#AnimalEyes are amazing sensory organs!
Here's the eye of an #EmperorPenguin. Just like its 'host', it needs to survive air temperatures down to -40 and below, water temperatures of almost -2C, and pressures associated with dive depths of 500m (!) and beyond.
https://link.springer.com/article/10.1007/s00300-020-02686-3

#Caturday
#AnimalEyes
A lion cub in Masai Mara, Kenya

Another re-post of a picture of the head of a Pacific sleeper shark, showing the eye with an ectoparasitic copepod (Ommatokoita elongata). You can also see a little bit how these sharks can rotate their eyes back into the socket. They can actually pull them back much deeper than in this image.
#AnimalEyes

Wider angle view of previous shot for context. These highly specialized ectoparasitic copepods (Ommatokoita elongata) are the only species of their genus, and are only found attached to the eye lenses of most Pacific sleeper sharks and Greenland sharks. It is unclear what their relationship to the host is (parasite or commensalist) and what their effects on the sharks may be. Older sharks often have quite scarred corneas, possibly as a result of the copepods. As a result of the scarring it has been suggested that the visual acuity of these sharks is low, and that they do not rely much on vision. However, as you can somewhat see in some of these images, these sharks appear to have a tapetum lucidum, which is thought to be an adaptation to visual acuity under low light conditions. We have also noted in our studies of captive sleeper sharks:
https://journals.scholarsportal.info/details/03781909/v105i0011/1519_chaocrojpssp.xml
that the sharks respond to visual stimuli such as waving your hand across/near the eye.
It has also been suggested that the copepod could serve as a lure to attract shark prey, but not evidence in support of this idea has been published.
#AnimalEyes

#AnimalEyes
Details to follow...

Eyes are fascinating sensory organs. I'm starting a thread called #AnimalEyes with mostly photos but also science trivia related to animal eyes and vision.
Starting with a Yellow Billed Stork in Kenya