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.
The lion, tiger (Panthera tigris), and cheetah (Acinonyx jubatus) are mainly terrestrial, but they are agile climbers; the leopard (Panthera pardus), jaguar (P. onca), ocelot (Leopardus pardalis), and other cats are very much at home in trees. The larger cats range over large areas, often roving alone or with a companion.