Although Thylacines were once widespread, their numbers began to decline in the 19th century due to hunting, habitat loss, and the competition from introduced predators such as dogs and foxes. The last known Tasmanian tiger died in captivity in 1936, and the species is now considered extinct.
Here is a more detailed description of where Thylacines lived:
* Australia: Thylacines were found in Tasmania, South Australia, and Victoria. They lived in a variety of habitats, including forests, grasslands, and coastal areas.
* New Guinea: Thylacines were also found in the New Guinea rainforest, where they lived in lowland and upland forests.
Thylacines were once a successful and widespread species, but they were unfortunately unable to adapt to the changes brought by humans. Their extinction serves as a reminder of the importance of conservation efforts and the need to protect our natural environment.