Animal euthanasia It was proposed that the presence of pentobarbital in dog food may have caused dogs to become less responsive to the drug when being euthanized. However, a 2002 FDA study found no dog or cat DNA in the foods they tested, so it was theorized that the drug found in dog food came from euthanized cattle and horses. Furthermore, the level of the drug found in pet food was safe. Animal euthanasia Animal euthanasia (euthanasia from ; "good death") is the act of putting an animal to death or allowing it to die by withholding extreme medical measures. Reasons for
Animal-made art Animal-made art Animal-made art is art created by an animal. Animal-made works of art have been created by apes, elephants, cetacea, reptiles, and bowerbirds, among other species. During the late 1950s, biologists began to study the nature of art in humans. Theories were proposed based on observations of non-human primate paintings. Hundreds of such paintings were cataloged by Desmond Morris. Morris and his associate Tyler Harris interpreted these canvas paintings as indications of an intrinsic motivation toward abstract creativity, as expressed through an exploration of the visual field and color. Many of these painters progressed over time by expanding or