Nice Doggie!

In The Daria Diaries, Adrian and Courtney send a postcard to the Lane home and announce that they have a dog. They are in the Petrified Forest of Arizona at the time. What is their dog, really? (I used this as a PPMB Iron Chef, but no one took the bait so we'll just guess.)

1. A regular dog with lots of fleas.
2. A lazy coyote that lets the children feed it.
3. A rabid dire wolf that thawed out of a glacier from the last Ice Age.
4. A baby rhinoceros.
5. A werewolf.
6. A chupacabra.
7. Bigfoot.
8. Scooby-Doo.
9. Dawg, from "Speedtrapped"
10. Leary III from "That Was Then, This Is Dumb"
11. J.B. from "A Hard Days' Night"
12. Trent, who is asleep and has a leash around his neck.
13. Brian Griffin ("Hey, can you kids get me a martini?)