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Dog noses are still better than human technology Despite years of research and billions of dollars of investm...
07/10/2020

Dog noses are still better than human technology

Despite years of research and billions of dollars of investment into artificial scent detection, dogs still beat technology. High-tech sensors built by the military to detect improvised explosive devices (IEDs) only detect about half, while dogs can find 80%. And while we now have systems that can detect a smaller amount of a chemical than a dog can, they're huge and complicated and can't be used in the field. You can bring a sample to the machine, sure, but it can't go out and hunt for it as a dog can.

Dogs have another chemical sense in addition to smell Like many animals, dogs have the vomeronasal organ (VNO...
27/09/2020

Dogs have another chemical sense in addition to smell

Like many animals, dogs have the vomeronasal organ (VNO) in the roof of the mouth, which detects pheromones. This is one reason dogs may lick things we think are gross, including the urine of other dogs—to get it closer to that organ. Along with their sense of smell, this lets dogs know many things about other dogs by what they've left behind, such as their s*x and how long ago they were there.

Dogs have evolved a special muscle to make puppy dog eyes You know that sad look your dog makes when she wants y...
17/09/2020

Dogs have evolved a special muscle to make puppy dog eyes You know that sad look your dog makes when she wants your food? Dogs actually have a special muscle to lift the inner eyebrows to make that look, which is not found in wolves. To human eyes, the expression makes them look babyish and sad, so we probably accidentally selected for it in the course of domestication because we find it endearing, and it triggers a nurturing response.

Your relationship with your dog is similar to the parent-child relationship Behavioral research has shown tha...
07/09/2020

Your relationship with your dog is similar to the parent-child relationship

Behavioral research has shown that dogs rely on us in many ways, just like children rely on parents. Both dogs and infants feel more secure about exploring when their caregiver is present. In experiments, when a baby sees something scary, they decide whether to approach depending on whether their parent acts like the thing is OK, and

Dogs can see colors It's often claimed that dogs can't see color, or that they can't tell the difference betwee...
27/08/2020

Dogs can see colors

It's often claimed that dogs can't see color, or that they can't tell the difference between red and green, but this is an oversimplification. Dogs have only two types of cones where humans have three; while research on how dogs' color vision works is still ongoing, experiments have shown they can distinguish colors. They can also use other cues, including brightness and intensity, so no need to throw away your red balls—they can find them on the green grass.

Dogs can tell what our facial expressions mean Dogs are good at reading our emotions. In fact, they can t...
17/08/2020

Dogs can tell what our facial expressions mean

Dogs are good at reading our emotions. In fact, they can tell whether we're angry or happy just from our expressions in photos, without the help of body language or our voices. In one study where dogs learned to tell the photos apart by being rewarded with a treat for touching them, dogs who were treated for touching the angry face learned more slowly, because they seemed to be reluctant to approach it.

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