Sightings of Thylacines have been reported over the years from explorers and from indigenous people groups who send hunters into the jungle or mountains.
Thylacine - The Australian Museum
Resolving when (and where) the Thylacine went extinct - ScienceDirect
Tasmanian tiger: Scientists hope to revive marsupial from extinction - BBC News
Australian scientists use imaging to map the brain of the extinct Tasmanian tiger
Back From The Dead? Reported Sightings Fuel Hope For Return Of Tasmanian Tigers : The Two-Way : NPR
Why the Idea of Bringing the Tasmanian Tiger Back From Extinction Draws So Much Controversy, Smart News
Genome of the Tasmanian tiger provides insights into the evolution and demography of an extinct marsupial carnivore
Thylacine Extinction - Behind the News
Tasmanian tiger hunt: expedition team vows to return after failing to sight elusive animal - ABC News
Tasmanian Tigers: Extinct or Elusive?
Tasmanian Tigers: Extinct or Elusive?