10 Fun Facts About Dogs

1. Dogs can't see the color red. They see the world in shades of blue and yellow.
2. The world's smallest dog breed is the Chihuahua.
3. Dogs have a "third eyelid" called a nictitating membrane that helps protect their eyes.
4. A dog's sense of smell is about 10,000 to 100,000 times better than a human's.
5. Dogs can learn up to 250 words and gestures.
6. The oldest dog breed is the Saluki, dating back over 7,000 years.
7. Dogs can understand human emotions through both facial expressions and body language.
8. A dog's tail wagging doesn't always mean happiness. The way a dog wags its tail can indicate different emotions.
9. Dogs have sweat glands on their paw pads.
10. Dogs can be trained to detect medical conditions like cancer and epilepsy.