I just tamed one. As i was walking it home, i see on the bottom of my screen “your brontosaurus lvl 11 was killed by megapiranha” i am so mad bcuz i have been trying to tame a bronto since i started the game at lvl 1, i’m lvl 46 now.
whoever said they lost Alpha, u can request her by going into ur inventory and pressing tames. if she is not dead u should see her name somewhere on that list. hope u find her. ^^