Here's a picture of my 5 month old puppy Chrisabelle:

http://i90.photobucket.com/albums/k249/kaiser147/07-28-08_1755.jpg

Her pound papers said she's a lab/chow mix but she doesn't have a spotted tongue and her tail is extremely long, straight, and thin. She also has two white rear paws and a small white diamond on her chest but the rest of her is pure black lab. Anybody know what else she might be mixed with?