Champions of Hibernation
  • Por Alison Pearce Stevens, Ph.D.
  • Duración: 0:03:51
  • Narrador: Highlights for Children
  • Editor: Highlights

This article is about fat dormice or "seven sleepers" animals related to squirrels. They hibernate for seven or eight months of the year slowing their breathing and heart rates to...

Under the Ice
  • Por Alison Pearce Stevens, Ph.D.
  • Duración: 0:03:03
  • Narrador: Highlights for Children
  • Editor: Highlights

Describes how Weddell seals live on and under Antarctic ice.