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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.
The heat sensing ability of a pit viper is so great that it can react to a difference as small as one third of a degree Fahrenheit. Other infrared-sensitive snakes have multiple, smaller labial pits lining the upper lip, just below the nostrils. [51]
The detection by predators and competing individuals of same species provides a strong evolutionary pressure. When active sensing is used, energy levels detected at the target are greater than those of the returning signal. Prey or predators evolved to eavesdrop on active sensing signals [citation needed]. For example, most flying insect preys ...
A pedestrian walks past a hologram representing murdered sex worker Bernadette Szabo, known as Betty, implemented by Dutch police in hope to uncover new information around her murder, in Amsterdam ...
Infrared sensing in snakes; L. ... Snake skeleton; Snakeskin This page was last edited on 23 March 2013, at 21:02 (UTC). Text is available under the ...
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The playoffs are here for millions of fantasy football managers. Here are our recommendations to start or sit in your lineup this week.