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Virginia McKenna Visits Elsa's Camp
2m 56s
"Born Free" star, Virginia McKenna, returns to Elsa's camp.
NATURE brings the beauty and wonder of the natural world into your home, becoming in the process the benchmark for natural history programs.
Video description: How is it possible that an egg can be strong enough to provide protection, yet soft enough that a baby bird can break through? See the remarkable way hatchlings are able to break out of their eggs.
Check out the new streaming service from Cascade PBS, which pairs your PBS favorites with an ever-growing selection of TV series and films from around the world. Enjoy dedicated mobile and TV apps.