Woolly Mammoth dental enamel from Poland has shown that woolly mammoths were being seasonally migratory. Recurring shifts in δ18O and 87Sr/86Sr located in levels from the enamel correspond to seasonal variants and suggest that Polish woolly mammoths inhabited southern Poland throughout winter but grazed the Polish midlands throughout summertime.[fifty nine] https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA