What escapes the eye is a much more insidious kind of extinction: the extinction of ecological interactions. ~ American evolutionary ecologist Daniel Janzen
The history of scientific endeavor is littered with virtual mountains of discarded theories, commonly developed by scientists who grip a belief system based solely on facts in favor while studiously ignoring inconvenient contradictions. Personal esteem often determines whether theories are rapidly rubbished or polished through time by discarding bits of discredited dross. The obscenely esteemed Darwin, who got much more wrong than right, is exemplary.
The realities of Nature are seldom neat, but the human mind demands that theories be kept tidy, else comprehension succumbs to conceptual chaos. What follows are extinction events for extinction theories, including denial of extinction altogether in favor of smooth evolution.