Ten days after the Chernobyl disaster, further risk of massive thermal explosion was identified. Three men known as “The Chernobyl divers” volunteered to swim through pooled water under leaked reactor to release the safety valves. They died a few days later due to radiation exposure.

Hugh Hefner funded some research in the 1980s that identified a subspecies of rabbit that dwells in the Florida Keys. The species was named after Hefner; its Latin name is Sylvilagus palustris hefneri.