last ice age
- glacialOf frozen rivers
- mammothExtinct elephant with curved tusks
- ice sheetThick glacial landmass covering
- tundraFrigid treeless biome
- permafrostPerpetually frozen earth layer
woolly · frozen · Pleistocene · glacier · megafauna · cave paintings · Neanderthal · migration · land bridge · Beringia · extinction · thaw · ice core · mastodon · frigid · prehistoric · hunter-gatherer · retreat