Another would be where mammoths were peacefully grazing somewhere and the weather and/or climate anomaly called The Younger Dryas came along and flash froze them in place.
There are some other ways ~ Zholzenetsyn reported on one where people found ancient flash frozen critters in what amounted to an ancient riverbed that'd been "uplifted" a bit. They were in an ice "lens".
The people who found them were Zeks so they butchered, cooked and ate the animals. Probably the only meat they'd had in years.
Ate the pre-historic mammoth!
That reminds me of a great-uncle who lived in New York City, part of the “upper-crust set”. He was member of the “Adventurers Club” and had a clipping from one of their banquets (in the 1960’s?) where the main course was mammoth.
“The people who found them were Zeks so they butchered, cooked and ate the animals. Probably the only meat they’d had in years”
That happened on “Northern Exposure” back in the early nineties. Walt said it was better than the best aged beef