Nonhuman Rts. Project, Inc. v. DeYoung Fam. Zoo, LLC
Summary: This appellate proceeding concerned a petition for a writ of habeas corpus filed on behalf of seven chimpanzees detained at a private zoo. The central legal question was whether chimpanzees qualify as "persons" capable of possessing a right to "liberty" cognizable under the common-law writ. The court engaged in a historical analysis, concluding that the common law, which the Michigan Constitution incorporates, has consistently confined the category of "persons" to human beings for the purpose of vindicating personal liberty. The court found that animals, irrespective of their cognitive abilities, have traditionally been regarded as property under the law and are incapable of bearing the social responsibilities and legal duties inherent in personhood. The petitioner's argument for a judicial expansion of the common law to recognize animal personhood was rejected, with the court emphasizing that such a fundamental departure from established legal principles falls within the exclusive purview of the state supreme court. The court therefore affirmed the trial court's summary denial of the petition for a writ of habeas corpus.