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 song song, consisting of a highly stereotyped vocal display involved in mate attraction. The cultural transmission of these songs has been found to occur across great geographic distances over years, with one study noting song transmission across the western and central South Pacific ocean populations over an 11-year period. Animal song Animal song is not a well-defined term in scientific literature, and the use of the more broadly defined term 'vocalizations' is in more common use. Song generally consists of several successive vocal sounds incorporating multiple syllables. Some sources distinguish between simpler vocalizations, termed “calls”, reserving the term “song” for more