Younger Dryas
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The Younger Dryas was a period in Earth's geologic history that occurred circa 12,900 to 11,700 years Before Present. It is primarily known for the sudden or "abrupt" cooling in the Northern Hemispher
Greenland ice cores since the Last Glacial Maximum show very low temperatures for the most part of the Younger Dryas, which then rise rapidly during the Holocene transition
Dryas octopetala is the indicator species for the period
Natufian culture
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The Natufian culture is an archaeological culture of the late Epipalaeolithic Near East in West Asia from 15,000–11,500 Before Present. The culture was unusual in that it supported a sedentary or semi
Dorothy Garrod (centre) discovered the Natufian culture in 1928
The Natufian appeared at the time of the Bølling–Allerød warming, before temperatures dropped drastically again during the Younger Dryas. Temperatures would rise again at the end of the Younger Dryas, and with the onset of the Holocene and the Neolithic Revolution. Climate and Post-Glacial expansion in the Near East, based on the analysis of Greenland ice cores.
Mortars from Natufian Culture, grinding stones from Neolithic pre-pottery phase (Dagon Museum)
The Ain Sakhri lovers, from Ain Sakhri, near Bethleem (British Museum: 1958,1007.1 )