Here's why:
* Panthera: This is the genus that includes all big cats like lions, tigers, leopards, jaguars, and snow leopards.
* Tigris: This is the species name, designating that it is a tiger.
* altaica: This is the subspecies name, referring to the specific subspecies found in Siberia.
So, the full scientific name Panthera tigris altaica accurately identifies the Siberian tiger as a member of the Panthera genus, the tiger species, and specifically the Siberian subspecies.