Free images results:

Herbivore pictures, stock photos and images


Swan Royalty Free Stock Photo
Author: A_gura
Fawn Royalty Free Stock Photos
Author: Jamiewilson
Giraffe Stock Photography
Author: Plsa

Also, here are some commercial RF-licensed images that match your search criteria:  
The koala Stock Images
Author: Taolmor
Porcupine Royalty Free Stock Photography
Author: Pilens
Porcupine Royalty Free Stock Photo
Author: Pilens
Iguana Stock Image
Author: Mgkuijpers