Mosquitoes feed on blood and use infrared to detect body heat. Male mosquitoes only eat plant fluids, but females need blood to lay eggs.


Salmon's retinas can see infrared light. This helps them find food in muddy water. These freshwater and saltwater fish are interesting. They go far to spawn in their birth river.

Vampire Bats

Bats feed on mammalian blood as vampires. Pit organs of vampire bats' noses allow them to detect infrared. It helps them find and catch prey.


Heat-sensitive membranes line rattlesnake pits. This membrane lets in heat so they can hunt at night. From Argentina to northern Canada, rattlesnakes live.


Infrared and UV are visible to goldfish. Their 4 cone cell kinds. UV-sensitive cells help goldfish to detect water movement and focus on small crustaceans, plankton, & insects.


These organs detect prey. Size-dependent, they eat eggs, birds, small animals, and lizards. Cottonmouths live in numerous southern and southeastern U.S. states.

Mantis Shrimp

Mantis Shrimp aren't shrimp. They eat shrimp, lobsters & crabs. Each eye's depth perception lets it see infrared and UV light. Mantis shrimp use dactyl clubs to smash prey.

 Black Fire Beetle 

Black fire beetles have infrared sensors. This insect uses infrared light to detect forest fires. Their wood-eating larvae can only grow in freshly burned trees.


Bullfrog eyes can see above and below water. This enzyme helps bullfrogs sense infrared and red light. Bullfrogs can leap 10 times their length.

Click Here