@huw_groucutt It’s also worth pointing out that within south america the extinctions were much more staggered, with many species surviving well beyond the younger dryas (which was very mild here). So the YD clearly wasn’t to blame here. https://t.co/UYqE
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@cfeagans Graph showing how South American megafauna extinctions are not concentrated within the younger dryas boundary (as mentioned in your article). Many survived thousands of years beyond the YD. Even mammoths survived on islands until 4000yrs BP. h