Before And After: What Sniffing Crack Does to Dogs

Crack sniffing dogs.

What does sniffing crack do to canines? Check these before and after photos.

Spot before.

Spot six months later.

Toughy before.

Toughy one year later.

Rowdy before.

.

Rowdy two years later.

Moo before.

Moo one year later.

Photos from Flickr: Tim Dorr, Upali, froghmutt, Scott 597, nagfactor, mindnyc, MICHAEL, Riode, Fugly nation. And the Fowlers.

Boo-boo before.

Boo-boo two years later.