camel camelus dromedarius desert farm hump nomadic sand Arabian brown camel-wool camelids camelus-dromedarius coat curly domesticated dromedary fawn hair hardy long mammals protective Ships of the Desert short strands strength strong surface surfaces texture textured textures thick thin tight tough ungulates wool woolen woolly animals bushy-eyebrows cow curly-eye-lashes efficient endurance even-toed-ungulate feral leathery-pads molt molting moult moulting Ships-of-the-Desert two-toed bushy eyebrows calf camel wool curly eye lashes even-toed ungulate leathery pads