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 various species of felids vary greatly in size. One of the smallest is the black-footed cat, measuring 35 to 40 cm (14 to 16 in) long, while the largest in the wild is the tiger, which can grow up to 350 cm (11.5 ft) in length and weigh 300 kilograms (660 lb).