A few nice animals for free images I found:
Pigs in gestation crates
Image by Farm Sanctuary
Female pigs used for breeding (called 'breeding sows' by industry) are confined most of their lives in 'gestation crates' which are so small that they cannot even turn around. The pigs' basic needs are denied, and they experience severe physical and psychological disorders.
(Feel free to distribute freely for not-for-profit use, but please credit Farm Sanctuary. If you are media and are in need of a high-resolution version of this image, please contact us at media@farmsanctuary.org and request the file "pigs4_300_1".)
