What was the other name for the extinct tiger subspecies, which inhabited the sparse forests and riverine corridors west and south of the Caspian Sea, from Turkey, Mesopotamia, Iran and the Caucasus, that has a project reestablishing populations of the Siberian tiger by introducing them as replacements to the extinct tiger?
Caspian tiger The Caspian tiger ("Panthera tigris virgata") is an extinct tiger subspecies, which inhabited the sparse forests and riverine corridors west and south of the Caspian Sea, from Turkey, Mesopotamia, Iran and the Caucasus, through Central Asia to the Takla Makan desert of Xinjiang in China, until the end of the 20th century. Depending on the region, it was also called Hyrcanian tiger, Turanian tiger, Persian tiger, and "Babre Mazandaran" (Persian: ‎ ‎ , Tiger of Mazandaran). It was one of the largest big cats to have ever lived and was described as being intermediate in size between Siberian and Bengal tigers.
Living dinosaur Living dinosaurs are non-avian dinosaurs that may have survived the Cretaceous–Paleogene (K–Pg) extinction event. The term is used in the scientific fields of paleontology and biology (as well as the pseudoscience of cryptozoology) to refer to different creatures. In paleontology, all non-avian dinosaurs are believed to have gone extinct during the K–Pg extinction event, round 5 million years ago, but there is some scattered evidence that some may have survived into the Paleocene epoch. These alleged creatures are referred to as living dinosaurs. In biology, the term is sometimes used to describe birds, which are the only living clade of dinosaurs today. In cryptozoology, where the term is often used, it refers to any legendary or folkloric creature that resembles the dinosaurs (such as the Loch Ness Monster), which cryptozoologists allege are dinosaurs that have survived into modern times. Excluding a few controversial claims, scientists agree that all non-avian dinosaurs became extinct at the K–Pg boundary.