Terriers are similar by their function as vermin hunters. They might pull pests from their dens. Due to their independent use, many are independent and tenacious or hyper. Some are also bull-and-terrier dogs used for bull baiting and pit fighting. They tend to be tough, but biddable.
There common properties are that they are small and they have small hair!
the now extinct white English terrier and the bull dog
Patterdale terriers, unfortunately, are not hypo-allergenic. However, many terriers are, including Scottish terriers, Welsh Terriers, Irish terriers, and Border Terriers.
wiry coated appearance (distinctive hair) and small size and/or high spirit/high energy
no yorkshire terriers do not drool
Carin terriers are part of the terrier breed of dog. The carin terriers are the oldest type of terriers that are known to exist. They originated from the Scottish Highlands.
Silky Terriers are longhaired.
yes
Beagles are not terriers, but yes they shed.
Yes, they are terriers.
Yorkshire terriers could get small and NT heavy . Yorshire terriers teacup could get very small.
Pit Bull Terriers, or American Staffordshire Terriers, originated in the United States in the 1800's.