Timeline to Extinction

The elves, being a very peaceful species, has not let a single species on Earth go extinct. They saved everything from Dinosaurs to wooly mammoths to Unicorns. They are helping the alicorn species not go extinct, or it would reset the timeline to extinction. They believe that every species should be preserved and saved. Sometimes they capture creatures from the wild and bring them to the  the Sanctuary, to keep them safe.