The non-racing Whippet is the smallest, weighing about 22 pounds.
The racing Whippet weighs close to 35 pounds.
Wendy weighs 65 pounds.
Wendy's double muscle condition has to do with a mutation on one gene. If a Whippet has one copy she will be very fast. If she has two copies she will be over-muscled.
If you want to know more, read this New York Times article.
|New York Times|