10 INTERESTING FACTS ABOUT DOGS

1,Puppies have 28 teeth and normal adult dogs have 42
2: Dogs eyes contain a special membrane that allows them to see in the dark
3:Dogs sense of smell is 10.000 times strong than humans
4: A one-year- old dog is as mature physically as 15 years old human
5 :Dogs can recognize more than 150 words
6:Dogs curl up in a ball when they sleep because of an age-old instinct to protect their organs
7: Dogs have about 1.700 state buds but cats only 473