What do these seven breeds have in common?
- American Staffordshire Terrier (aka the Pit Bull)
- Golden Retriever
- Labrador Retriever
The first two breeds and their crosses account for about half of all dogs killed in American shelters today.
The last two breeds -- the Golden Retriever, and the Labrador Retriever -- account for over one-quarter of all dogs registered by the American Kennel Club.