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Dogs detect heat with 'infrared sensor" in their noses, research finds

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03-03-2020 | 10:43

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Dogs detect heat with 'infrared sensor" in their noses, research finds

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Dogs have a type of infrared sensor in the tip of their nose which enables them to detect minute changes in temperature such as when other animals are nearby, according to new research.

Scientists at Sweden's Lund University and Hungary's Eotvos Lorand University say the discovery can help better understand how predators detect their prey when other senses such as sight, hearing or smell are hindered.

In their study printed in Scientific Reports, a journal published by Nature Research, scientists found that the naked, wet skin surface at the tip of a dog's nose, which is full of nerve endings, worked as an infrared sensor.

Anna Balint, the lead author of the study, said scans of the animals brains showed increased brain activity when dogs were shown objects that were warmer than their surroundings.

Balint said future research might reveal the same sense in other carnivore species, adding that the discovery shows how dogs' "view of the world" in more depth.

Among the dogs involved in the test were golden retrievers and border collies.

REUTERS

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