Order Edentata is a taxonomic classification that refers to anteaters, sloths, and armadillos. These mammals are noted for their lack of teeth or having very simple ones. Some common alternative names for Order Edentata include Xenarthra, which is based on their unique pelvic bone structure shaped similarly to a crossbow, and New World anteaters. Another synonym for Edentata is "toothless ones." Despite their name, they are not completely lacking teeth, as some species have rudimentary or peg-like teeth in their jaws. These unique creatures occupy a unique niche in their ecosystems and are important for maintaining biodiversity in their habitats.