The names of some domestic animals are horses, pigs, chickens, ducks, geese, pigeons, cattle, sheep, goats, dogs, cats, camels, llamas, reindeer, yaks and water buffalo.
Animal names beginning with "a" include ant, aardvark and anteater. Two prehistoric animals called the ammonite and the ankylosaurus also begin with "a.".
Animals possess a sense of morality that allows them to tell the difference between right and wrong, according to a controversial new book. Scientists studying animal behaviour believe they have growing evidence that species ranging from mice to primates are governed by moral codes of conduct in the same way as humans.