The first photo is of an unborn cow fetus showing the unethical practices at the Limoges Slaughterhouse. The picture was posted under the Creative Commons Attribution 3.0 Unported

• Abattoir-veau-mort.jpg

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The second photo is of a poor mother and children during the Great Depression. Elm Grove, Oklahoma County, Oklahoma, USA. The picture was posted under the CC0/Public Domain license.

• Poor mother and children, Oklahoma, 1936 by Dorothea Lange.jpg

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The third photo is of acute cellular degradation caused by radiation poisoning. The picture was posted under the CC0/Public Domain license.

• Autophagosomes.jpg