Reincarnated as a Tiger but Told Me That I Can Cultivate Immortality Here?

Travel through time and become a little tiger, clear your phone and computer! There are no short videos, no novels, no bustling world, only the endless virgin forest. Drinking milk, weaning, learning to hunt, avoiding natural enemies, fighting for territory, and struggling to grow up in the quiet mountains and forests. When I was preparing to roar in the mountains and dominate the world, you told me that this was a world of immortal cultivation?