Woolly Mammoth dental enamel from Poland has demonstrated that woolly mammoths were seasonally migratory. Recurring shifts in δ18O and 87Sr/86Sr present in levels with the enamel correspond to seasonal variations and show that Polish woolly mammoths inhabited southern Poland all through Wintertime but grazed the Polish midlands in the course https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA