Becasue they've been bred for generations to become like that. Only the adults of a certain size were allowed to breed, so eventually the tendency to grow larger disappeared.
NO
Small dogs/toy breeds such as a Yorkie and Maltese
they are small because that's how they were bred. Also called selective breeding. Runts from litters where kept to breed with other runts to make small dogs stay small. this article explains how mutations in a gene keep dogs small...it's really very interesting: http://www.livescience.com/7268-study-reveals-dogs-small.html
Yorkiee , chaiwawa , dotsons , and an oter that I missed .
To allow them easier passage through the birth canal.and some dogs are very small so they stay like that
To allow them easier passage through the birth canal.and some dogs are very small so they stay like that
If your going to fly on Jetblue, they allow small dogs 20 pounds or less. Small have to stay under the seat in your coach. Other wise if you have a big dog, they have to sit on you lap and keep them quiet.
The "dogs" are hot dogs and they are in a freezer.
No, The dogs will stay at the house. Jon and Kate will be moving in and out of their house, but the dogs will stay at the house.
AffenpinscherBologneseBolonkaBrussels GriffonCavalier King Charles SpanielChihuahuaChinese CrestedEnglish Toy SpanielHavaneseItalian GreyhoundJapanese ChinMalteseManchester TerrierMiniature PinscherPapillonPekingesePomeranianPoodlePugShih TzuSilky TerrierToy Fox TerrierYorkshire Terrier
Elephants are not the size of dogs, but their babies are small.
It depends on what you mean by small. Most are between 9.5-12 inches tall at the top of their shoulder blades, and most weigh between 8-15lbs.