C. R. "Chuck" Downing
shared:
6/5/2017 8:05:18 AM
Reply#SciFact. How factual is zoo hypothesis, coined in 1973 by astronomer John Ball? Sherry Frazier @the_sciencegeek... https://t.co/olLyhQey71
— C.R. Downing (@CRDowningAuthor) June 5, 2017