Lion
Individual lions survive approximately 12-16 years in the wild, their reign as pride leaders averaging a mere 2-3 years before younger males arrive to demonstrate the brutality of leonine succession planning. The species itself has proven more resilient, though populations have declined by 43% over the past two decades.
Lions require specific habitat conditions: adequate prey density, territorial space, and the absence of humans with rifles. The Conservation Vulnerability Index rates lions as 'concerning' - robust enough to survive without intervention, fragile enough to be eliminated by determined human effort.
Justice
Justice has survived the collapse of every civilisation that ever championed it. The concept outlived the Roman Empire, the British Empire, and the entire Soviet Union. It endures regime changes, revolutions, and the occasional descent into barbarism, only to resurface when stability returns.
The Historical Permanence Registry at the University of Temporal Studies notes that justice has been 'declared dead' by cynics in every century since written records began, yet continues to be invoked by 97% of protest movements and 100% of politicians seeking election. It is, in academic terms, 'philosophically unkillable.'
VERDICT
You can shoot a lion. You cannot shoot an abstract concept, though many have tried. Justice claims this category through sheer conceptual immortality. As the researchers note: 'Lions require conservation; justice merely requires someone to believe in it.'