What aspect of the saber-tooth's evolution is cited as potentially contributing to its demise?

Answer

Its high specialization for hunting large megafauna that subsequently declined

The extreme specialization that made the saber-tooth supremely adapted to large herbivores became a liability when those megafauna disappeared, as the predator could not easily pivot to smaller, faster prey.

What aspect of the saber-tooth's evolution is cited as potentially contributing to its demise?
paleontologyadaptationtoothCarnivoreFeline