Get smart curated videos delivered to your inbox every week.      
The Kid Should See This

Return of the Wood Frog – Invisible Nature

The common wood frog (Rana sylvatica) has an unusual strategy for coping with the cold. While most terrestrial frogs and toads burrow deep underground to escape freezing temperatures when they hibernate, the wood frog spends its winters at the surface. The frog tucks itself into shallow depressions, covered only by a blanket of leaf litter. There it undergoes a transformation that would kill most other vertebrates: It freezes solid.

Believe it or not, this overwintering deep freeze is how it survives the cold… and the colder the better. Watch Invisible Nature: Return of the Wood Frog, a bioGraphic film by Flora Lichtman, to learn more about the wood frog’s biological superpower, an incredible chemical secret that allows it to thaw from the inside out when spring temperatures return.

Next: How Do Trees Survive Winter? and Where Do Birds Go In Winter?

This award-winning video collection is reader-supported. Become a sustaining member to keep TKSST online and free for everyone, including teachers and parents who use it as a resource to spark learning and curiosity for kids.

🌈 Watch these videos next...

Whale Fall (After Life of a Whale)

Rion Nakaya

How do you find water bears (tardigrades) in the wild?

Rion Nakaya

The tiny glass frog of Costa Rica

Rion Nakaya

Animated Life: Pangea – The story of Alfred Wegener

Rion Nakaya

Each Tree Is Its Own Adventure: Climbing giant sequoias for science

Rion Nakaya

Hawk moths and The Art of Staying Stable

Rion Nakaya

An up-close look at tardigrades and their poop

Rion Nakaya

The Living Fossil Fish – Animated Life

Rion Nakaya

Stomping, fluffing, puffing: The mating displays of lesser prairie-chickens

Rion Nakaya