0
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
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Are there elephants that are small like dogs?
Elephants are not the size of dogs, but their babies are small.
are bulldogs hunting dogs?
no they are not hunting dogs . they are too small. As with most small dogs there were originally breed as ratters.
How small is a dogs bairn?
small
Are french bulldogs hunting dogs?
no they are not hunting dogs . they are too small. As with most small dogs there were originally breed as ratters.
Can potato bugs get small dogs sick?
Because small dogs like potatoes...
Which one likes little kids more big or small dogs?
small dogs edit: i grew up with big dogs but i also like small dogs so both.
Will coyotes eat dogs?
yes, small dogs
How much faster do bigger dogs age than small dogs?
That is not possible small dogs can run quiet fast for their size maybie faster!but big dogs are very fast too,as the small dogs are lighter than big so that's why!
Do smaller dogs run slower than large dogs?
Big dogs are much better at running because they have longer legs but some small dogs are pretty fast.
How are teacup dogs created?
Genes Small Dogs, and the Genes they have
What is eaten by dogs?
small animals like wild dogs
What is pupies?
pupies are small dogs And dogs are big pupies!
