Woolly Mammoth dental enamel from Poland has shown that woolly mammoths were being seasonally migratory. Recurring shifts in δ18O and 87Sr/86Sr located in layers with the enamel correspond to seasonal versions and suggest that Polish woolly mammoths inhabited southern Poland all through winter but grazed the Polish midlands in the https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA