kingsnake.com - reptile and amphibian classifieds, breeders, forums, photos, videos and more

return to main index

  mobile - desktop
follow us on facebook follow us on twitter follow us on YouTube link to us on LinkedIn
click here for Rodent Pro  
click here for Rodent Pro
This Space Available
3 months for $50.00
Locate a business by name: click to list your business
search the classifieds. buy an account
events by zip code list an event
Search the forums             Search in:
News & Events: Herp Photo of the Day: Frog . . . . . . . . . .  Herp Photo of the Day: Happy Rattlesnake Friday! . . . . . . . . . .  Colorado Herp Society Meeting - May 17, 2025 . . . . . . . . . .  Chicago Herpetological Society Meeting - May 18, 2025 . . . . . . . . . .  San Diego Herp Society Meeting - May 20, 2025 . . . . . . . . . .  Bay Area Herpetological Society Meeting - May 23, 2025 . . . . . . . . . .  Suncoast Herp Society Meeting - May 24, 2025 . . . . . . . . . .  DFW Herp Society Meeting - May 24, 2025 . . . . . . . . . .  Tucson Herpetological Society Meeting - May 26, 2025 . . . . . . . . . .  Greater Cincinnati Herp Society Meeting - June 04, 2025 . . . . . . . . . .  Calusa Herp Society Meeting - June 05, 2025 . . . . . . . . . .  Southwestern Herp Society Meeting - June 07, 2025 . . . . . . . . . . 

My answer.....


[ Follow Ups ] [ Post Followup ] [ The Crotalidae Forum ]

Posted by Brendan on October 18, 2002 at 18:12:54:

In Reply to: Excellent shot, plus a question????........ posted by Kerby... on October 18, 2002 at 17:54:23:

:I am assuming that snake's pupils will dialate?? The top speck seems to have more of a round pupil than the one below it. Do they get really thin at night and more round during the day??

Kerby,

Yes, they do dialate and constrict. The brighter the light source, usually the more constricted the pupil will be in order to reduce the chance of damage to the retina. At night (ie. low light) the pupils are usually more dialated (full pupil) and during the day more constricted (thin slits). It's pretty much the same premise as in humans. The flash of the camera "usually" causes the thin pupils like the bottom animal. For some reason the animal on top has genetically large pupils that are not as responsive to light.





Follow Ups:




[ Follow Ups ] [ The Crotalidae Forum ]