Journey to the Subnivean Zone

Aviva tries to prove that groundhogs have amazing creature powers, but instead falls into a deep sleep, leaving the Kratt bros to discover all about hibernation. Learning Goals: Some animals hibernate – storing food and slowing their metabolism – to survive the winter. Animals Featured: Groundhogs Never Before or Rarely Seen Wildlife Moment: Why goundhogs poke their heads out of their burrows (whether staying up or going back down) after winter’s over.