Roughly 12,900 years ago....a huge glacier sat over North America (maybe 2 miles thick over NY state), then ‘something’ occurred, and a rapid melt (not in centuries or decades, but in a matter of days and weeks). Neither the arrival of glacier period, or the end of the glacier period....have ever been explained. But one curious event came out of this....water levels rose 250 to 300 feet across the globe, and are where there are today. Whatever civilization existed....went 300 ft below the water.
Before any idiots go play the climate ‘saga’....they need to go back and explain this period, and the rapid disappearance of the glacier.
Then there are the frozen mammoths found in Siberia with flowers in their mouths and stomachs. One minute you’re grazing on tasty flowers and the next you are flash frozen.