Question: Yoshinori Imaizumi is known for describing a subspecies that has been listed as critically endangered on the IUCN Red List since which year ?
Sentence (from "Yoshinori Imaizumi"): Yoshinori Imaizumi (今泉吉典 , Imaizumi Yoshinori , March 11, 1914 – April 2, 2007) was a Japanese zoologist.
Relevant evidence: Yes