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.
Family Trees and Common Scratching Posts. All cats are in the Felidae family. It's not wrong to call them felids. Within the felidae family are two living subfamilies: Pantherinae (which includes jaguars, lions, leapards and tigers) and Felinae (which includes cougars, cheetahs, lynxes, ocelots and house cats).