All the members in the family Camelidae are popularly called camelids. There are Old World camelids and New World camelids. The Old World camelids (camels) belong to the genus Camelus, whereas, the New World camelids (llama, alpaca, guanaco and vicuna) are placed in the genus Lama. The four species of the New World camelids are also called lamoids or cameloids. Among all the lamoids, the llama and the alpaca have been domesticated, while the remaining two species are still wild in nature. All the camelids are well adapted to walking on sandy deserts or on rough mountain terrains. The members of this family are characterized by having fatty fibroelastic sole pads, two toes with broad nails on each foot, three-chambered stomachs, forked lips, no horns, absence of gall bladder and elliptical red blood corpuscles.