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Some neurons appear to be tuned to detect movement in one direction. It has been found that the snake's visual and infrared maps of the world are overlaid in the optic tectum. This combined information is relayed via the tectum to the forebrain. [9] The nerve fibers in the pit organ are constantly firing at a very low rate.
The snake detection theory, [1] [2] [3] also sometimes called the snake detection hypothesis, suggests that snakes have contributed to the evolution of primates' visual system. According to the theory, predatory pressure from snakes has selected individuals who are better able to recognize them, improving their survival chances and therefore ...
At that time, it becomes cloudy and is visible as a cover over the eye. When the snake moults, the brille is also shed, generally inside out, as part of its skin. The brilles protect their eyes from dust and dirt and give them a "glassy-eyed" blank appearance. [2] Snakes, flap-footed lizards, night lizards, and some skinks have brilles.
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Rena dulcis, also known commonly as the Texas blind snake, the Texas slender blind snake, or the Texas threadsnake, [4] is a species of snake in the family Leptotyphlopidae. The species is endemic to the Southwestern United States and adjacent northern Mexico. Three subspecies are currently recognized, including the nominate subspecies ...
A “mega den” of hundreds of rattlesnakes in Colorado is getting even bigger now that late summer is here and babies are being born. Thanks to livestream video, scientists studying the den on a ...
Indotyphlops braminus, commonly known as the brahminy blind snake [4] and other names, is a non-venomous blind snake species, found mostly in Africa and Asia, and has been introduced in many other parts of the world.
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