Infrared light is visible only to dogs but many other species use it to locate prey. Research has found that cold-blooded animals such as snakes amphibians and insects use infrared to guide themselves.
Mosquitoes will probably be able to find you no matter how hard you try to keep them away because of this. In the past it was thought that those nasty creatures only used their smell to detect chemicals that indicated humans were nearby. Recent studies have shown that they also use infrared light to find their next meal. If they get close enough they may also be able to see you.
Detecting infrared light is also very easy for your goldfish. Even goldfish can see into the ultraviolet spectrum but that isnot much use in a glass bowl.
It is also very good at detecting infrared light although unlike dogs it does not actually see it but rather perceives it. Vipers of this type have “pit sensors” located on their jaws which can detect changes in the heat spectrum and send a message to the brain.