2013 Event Lazarus Project scientists reveal that they successfully recovered frozen tissue from the 1970's and rejuvenated the cells of Rheobatrachus silus, a species of frog that has been extinct since 1983 2012 Event Scientist in Tanzania discover the oldest-known dinosaur fossil - a 243-million-year-old fossil from the extinct reptile Nyasasaurus 2011 Event In Borneo a previously extinct rainbow toad is rediscovered by scientists; the sighting is the first since its extinction was declared in 1924 2010 Event A Japanese salmon subspecies, the black kokanee (Oncorhynchus nerka kawamurae) is discovered after being declared extinct in 1940 2010 Event Scientists announce the discovery of Inkayacu, an extinct genus of prehistoric penguin that lived in the Late Eocene period 1984 Event DNA is successfully cloned from an extinct animal 1982 Event 10 Arabian oryx, extinct except in zoos, released in Oman 1961 Event A believed extinct volcanco erupts in Tristan da Cunha 1951 Event Thought extinct since 1615, a Cahow is rediscovered in Bermuda
