https://arstechnica.com/science/2018/06/extinct-gibbon-in-ancient-chinese-tomb-hints-at-other-lost-primate-species/
https://www.eurekalert.org/pub_releases/2018-06/aaft-tla062118.php
https://mashable.com/2018/06/21/gibbon-tomb-extinction-by-humans/?europe=true#4hWwQ67EMaqU