The Tasmanian tiger, also known as the thylacine, was a carnivorous marsupial native to Tasmania, Australia, and New Guinea. It had a slender body, a head resembling that of a dog, and distinctive stripes across its back, which led to its nickname. The thylacine was the largest known carnivorous marsupial of modern times and was primarily nocturnal, hunting small animals and birds. The last known wild thylacine was captured in 1933, and the species was declared extinct in 1936 after the last known individual died in captivity. Despite its extinction, the Tasmanian tiger remains a subject of interest for conservationists and researchers, with occasional unverified sightings reported in Tasmania.