@sepiata
Some snakes can sense heat in complete darkness.
Pit vipers, like rattlesnakes, have special heat-sensing organs between their eyes and nostrils. These organs detect infrared radiation, allowing the snake to βseeβ the body heat of other animals.
This means a snake can accurately strike prey even in total darkness, guided only by temperature differences. Warm-blooded animals glow like targets against a cooler background.
For these snakes, darkness doesnβt exist.
Heat becomes vision.
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