Biology
- Thomas D. Brock and Hudson Freeze of Indiana University publish their findings on hyperthermophilic bacteria, most notably Thermus aquaticus, a thermophilic bacterium species living at a temperature of 60-80°C in a hot spring at Yellowstone National Park. T. aquaticus (Taq) later becomes a standard source of enzymes able to withstand higher temperatures than those from E. Coli and is significant in the history of polymerase chain reaction.
- Last Przewalski's Horse sighted in the wild, in Mongolia.
Read more about this topic: 1969 In Science
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