What could cause a brown vertical line and horizontal ridges on one side of only one fingernail? Dr. Richard Zimon Dr. Zimon More info needed: Sounds like you damaged the nail bed at some point in time.
As tigers are related to cats it would mean that mean that they are feline. A canine is a dog so tigers aren't canine. 2 people found this useful.
Big Cat Species & Subspecies. Big cats are all members of the Felidae family (a biological classification), along with small wild cats and domestic cats. There are two Felidae sub-families, the Pantherinae and the Felinae. The lion, jaguar, tiger and leopard are members of the subfamily Pantherinae and the genus Panthera. They are the only wild cats that roar. The snow leopard is also a member of the Pantherinae sub-family, as well as the clouded leopard and Sunda clouded leopard.