https://www.popularmechanics.com/science/animals/g20955197/animals-almost-extinct/?slide=1

https://www.insider.com/endangered-animals-2018-3#the-saola-or-asian-unicorn-wasnt-discovered-until-1992-4

https://www.earthday.org/campaigns/endangered-species/

https://onekindplanet.org/top-10/top-10-worlds-most-endangered-animals/

https://www.britannica.com/list/10-of-the-most-famous-endangered-species