The word "animal" comes from the Latin word animalis, meaning "having breath".In everyday colloquial usage the word incorrectly excludes humans—that is, "animal" is often used to refer only to non-human members of the kingdom Animalia.
Sometimes, only closer relatives of humans such as mammals and other vertebrates are meant in colloquial use. The biological definition of the word refers to all members of the kingdom Animalia, encompassing creatures as diverse as sponges, jellyfish, insects, and humans.
