I Saw Nothing

Rosie never liked Elias Churchill, and she liked him even less when he trapped the last tiger-wolf ever to be seen. Thylacine was the proper name for a tiger-wolf, according to Alison Reid, the lady at Hobart Zoo. She said that this one may be the last in existence. It was Rosie's thylacine! Was Rosie the last person to see the thylacine alive and free in the wild? Could she have done anything to save it being captured, saving all thylacines from extinction?