Free images results:
 

Herbivore pictures, stock photos and images

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