Green Tree Python eye pupil question

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i pee in the sea

Feeder Fish
MFK Member
May 2, 2009
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Toronto, Canada
Like the many of you, I'm in the process of building a personal zoo :D

My next purchase will be a green tree python, and I'm still researching away.
I found a local breeder that works with Arus. The posting with pictures can be found in this link:
http://www.monsterfishkeepers.com/forums/showthread.php?t=369992

This could be a very silly grade 9 science question, but I have no shame in asking something that I don't know :D
I've noticed that some snakes have different pupil shapes. For an example:

Linnaeus400.jpg
(NOT MY PIC)
compared with
green_tree_python.jpg
(NOT MY PIC)

Is this just a dilation in conjunction with the time of the day, much like cats?
or are there just differently shaped, period?
 
It depends on the amount of light. The more light there is, the more the iris contracts, making the pupil smaller. In the first picture there is a lot of light, in the second picture, less light.
 
Oh, so it's just a reaction to the light.

How silly of me, I was getting the craziest idea that meraukes and jayapuras had the coolest looking pupils.. So I was gonna look for breeders who dealt with them instead :grinno:

Thanks for clearing that up.
 
i pee in the sea;4715161; said:
I also found this in my research
snakehd2.gif

Is this accurate?
Click to expand...

In terms of head shape, yes (for some), but not pupils. A lot of venomous snakes have permanent "angry" looks on their faces. But not all do, such as the coral snake. It's just a good rule of thumb (besides, a lot of cobras look more like the first one).

The first snake has round pupils, just like us. With more light, the circle simply gets smaller. With any animal with slit pupils, the pupil can go from a slit, to joined parentheses, to almost fully circular in really low light.
 
Juxtaroberto;4715170; said:
In terms of head shape, yes (for some), but not pupils. A lot of venomous snakes have permanent "angry" looks on their faces. But not all do, such as the coral snake. It's just a good rule of thumb (besides, a lot of cobras look more like the first one).

The first snake has round pupils, just like us. With more light, the circle simply gets smaller. With any animal with slit pupils, the pupil can go from a slit, to joined parentheses, to almost fully circular in really low light.
Click to expand...

Very informative, thank you! :)

I couldn't really tell from personal experience from my own snakes,
as BPs just seem to have "black eyes" and I could only look at my kenyan sand boa's eyes in the light, and it's always looked the same.
 
Nothing on a GTP is a good indicator of adult coloration hehe thats part of the fun. You can get a basic idea by lookin at the parents and grand parents but thats not a garauntee your baby will turn out to look like that
 
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