By the 1950s, scientists were able to do this to frogs; mice followed, in the '80s
[DOC] [TLE] jeopardy/2377_Qs.txt at master  jedoublen/jeopardy  GitHub [PAR] A "LONE" | By the 1950s, scientists were able to do this to frogs; mice followed, in 
the '80s | clone.