Among mammals, the Siberian tiger (scientific name: Panthera tigris altaica) is generally considered to have the longest hair. They are large cats that inhabit cold regions such as Siberia and the Far East.
The Siberian tiger's hair is dense and thick, designed to provide warmth and concealment. The length of its body hair can reach 10 to 15 centimeters or even longer. In addition, they have a rough outer layer of hair called "guard hair" that helps protect the soft underlying hair from puncture wounds.
It is important to note that the length of an animal's hair may vary due to individual differences, seasonal changes, and genetic factors. So while the Siberian tiger is generally considered to have the longest hair, there may be other animals with considerably longer hair.
