Lying dogs (sideways)

Laiko argentine dogo.jpg
© David Durrenberger
CC BY-SA 2.5

Filhote labrador.JPG
© Unknown
CC-BY-SA-3.0

White dog on white stai..
© Thaddeaus
Public Domain

Mixed-breed dog white s..
© Eli Duke
CC BY-SA 2.0

Francuski buldog Krk.jpg
© Roberta F.
CC BY-SA 3.0

Day 4 Truffle asleep wi..
© John
CC BY-SA 2.0

Keeshond.JPG
© No machine-readable ..
CC BY-SA 3.0

Thor the pit bull terri..
© Edwin Luciano
Public Domain

Puppydog.jpg
© GodsDogs
Public Domain

Selvanegrasecuritydog.JPG
© Serenityweb1
CC BY 3.0

PC290231.JPG
© Mhanewmexico
Public Domain

Dalmatin.JPG
© nofs
Public Domain

Girl asleep with her sm..
© David Shankbone
CC BY 3.0

Border terriers sleepin..
© HawaiianMama
CC BY-SA 3.0

Unknown mixed dog breed..
© User:Mattes
CC BY-SA 3.0

Sam and ralph sleeping...
© Andrew Adams
Public Domain

Mandfweim.jpg
© HPRWeims
CC BY 3.0

Shiba Inu 15 year old.jpg
© Buster0303 at Englis..
CC-BY-SA-3.0

Flickr - bslmmrs - I do..
© Bas Lammers from nie..
CC BY 2.0

Sleepingsiberianhusky1...
© John A. Taylor
CC BY-SA 3.0