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.
Tigers are the largest of all cats, but also have the most variability in size. The largest subspecies, the Siberian tiger, grows to over 3.5m long with a mass of over 300k. The smallest subspecies, the Sumatran tiger, is only around 2m long and 100kg when fully-grown. 14. Tigresses are fertile for a period of only four or five days throughout the entire year.