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believe solve find posit sense touch detect know be regulate
conduct have differentiate show discern sense come hunt use sense
Researchers they have one of science's greatest mysteries. They think they have out why a dog's nose is cold. Scientists from universities in Sweden and Hungary have that dogs' noses are constantly cold because they act as "ultra-sensitive heat detectors". Canines can the temperature of something before they it. They added that dogs use their noses to tiny changes in temperature, such as when possible predators or prey are nearby. Humans generally only something is hot after touching it, often with painful consequences. It was common belief that the only reason dogs' noses cold is to control and their own body temperature.

The researchers experiments on sixteen dogs that to detect the temperature of different objects in a room. The objects had different temperatures that humans could only by touching them. The scientists said that the brain activity in the dogs that they could which objects were warmer than others. Anna Balint, lead author of the study, said: "Dogs are able to the thermal radiation from warm bodies or weak thermal radiation, and they can change their behaviour according to this signal." Another scientist said scientists should now re-evaluate how predators . Many may heat-sensing abilities to track or their prey.

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