this concept ...
"The idea that species should remain extinct if they died out naturally, without human influence, isn't a statement made by a single person, but rather a concept that aligns with certain perspectives on evolution and conservation. One can find support for this idea in the writings of Charles Darwin, who recognized extinction as a natural part of evolution, and in the work of Georges Cuvier, who established extinction as a scientific fact. However, the concept also contrasts with modern conservation efforts focused on preventing further extinctions, including those caused by human activity. "