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Infrared sensing snakes use pit organs extensively to detect and target warm-blooded prey such as rodents and birds. Blind or blindfolded rattlesnakes can strike prey accurately in the complete absence of visible light, [13] [14] though it does not appear that they assess prey animals based on their body temperature. [15]
The snakes' face has a pair of holes, or pits, lined with temperature sensors. The sensors indirectly detect infrared radiation by its heating effect on the skin inside the pit. They can work out which part of the pit is hottest, and therefore the direction of the heat source, which could be a warm-blooded prey animal.
Many empirical studies have found evidence for the theory. Primates, including humans, are able to quickly detect snakes. [6] [7] Some studies have found that humans can detect snake images before subjective visual perception. [8] However, the pre-conscious detection of snake stimuli is still under debate by the scientific community. [9]
Lynne A. Isbell (born 1955) is an American ethologist and primatologist, professor of anthropology at the University of California, Davis.. Isbell has served as president of the American Society of Primatologists and is the originator of the snake detection theory, which suggests that snakes have contributed to the evolution of the visual system of primates.
Simplified representation of a bolometric pixel. A microbolometer is a specific type of bolometer used as a detector in a thermal camera. Infrared radiation with wavelengths between 7.5–14 μm strikes the detector material, heating it, and thus changing its electrical resistance.
A son who held his parent's alleged murderer at gunpoint is opening up about his final moments with his mother and father. T.D. Gribble recalled how he embraced his mom Paula, 76, and kissed the ...
Seltzer water and sparkling water are readily available at most grocery stores and offer copious flavor options that make for tasty sugar-free soda substitutes.
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