WHWT were actually bred for hunting, small animals in particular, like rats. So, you could say it's in their nature to ''hate'' them.
They have one of the strongest hunting instincts.
They were bred for hunting small animals, and because of this, they don't like animals that are smaller than themselves.
They ate animals smaller than themselves.
Going any smaller than a westie and you get those "teacup" dogs, which usually aren't really in good health. Westies are plenty small by themselves.
All dogs are susceptible, particularly smaller breeds.
a highland.
A Welsh Terriers are the exact look alike to Airdales, but much much smaller.
A Chihuahua is easily 4 or 5 times smaller than any Bull Terrier. English Bull Terriers and Staffordshire Bull Terriers are medium sized breeds, compared to the miniscule Chihuahua. Even Miniature Bull Terriers are noticeably larger than a Chihuahua.
They would rather test harmful products and chemicals on masses of smaller creatures that can't argue or fight back than on themselves.
Animals that are smaller in size will have smaller prints. Animals that have skinny legs and small hooves, such as deer, will also produce a smaller footprint.
no tea cup grows a lot smaller than a regular yorkie
amoebas are actually animals, therefore are animals smaller than paramecium.