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