The Terms Olvar and Kelvar literally mean growing things rooted in the earth and living things that move in other words the Plants and the Animals of Arda.
The Kelvar are sometimes divided in the bats and birds, water animals, Potili ([[insects[[ and spiders), Rávatsar (amphibians and reptiles), Lassanakûni (leaf-eaters including Cattle, goats, sheep as well as wild deer), riding and draft animals (including horses and ponies, apsanakûni (meat eaters including bears, cats, dogs and wolves) and other dangerous animals.The Olvar are sometimes divided into Trees, other plants and funghi.Both types of living things include the Uvanimor or Monsters of Morgoth.