In Brazil they've filed Habeas Corpus claims on behalf of chimpanzees. Just last week, animal protection groups filed a motion to have Jimmy released on ground

In Brazil they've filed Habeas Corpus claims on behalf of chimpanzees. Just last week, animal protection groups filed a motion to have Jimmy released on grounds of Habeas Corpus, arguing that he is being denied his rights to freedom of movement and to a decent life, in Rio's Criminal Court. http://www.treehugger.com/files/2010/01/are-zoos-prisons-habeas-corpus-filed-for-chimp.php http://www.treehugger.com/files/2010/01/are-zoos-prisons-hab... According to the article there are successful precedents for habeas corpus claims on behalf of chimpanzees in that country.