Woolly mammoth dental enamel from Poland has demonstrated that woolly mammoths have been seasonally migratory. Recurring shifts in δ18O and 87Sr/86Sr found in layers from the enamel correspond to seasonal versions and reveal that Polish woolly mammoths inhabited southern Poland during Wintertime but grazed the Polish midlands in the course https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA