Happy holidays! This is a rebroadcast of our chilly Season 7 episode, The Great Seal Count.
How do you count the cutest seals on the planet? With the help from thousands of people around the world! Conservation scientist Leo Salas explains the story behind the first-ever global count of Weddell seals in Antarctica. Plus, you’ll find out what counting seals s ... Show More
Aug 7
Mailbag: How Do Stem Cells Decide What to Become? What's Morse Code?
In this special summer mailbag episode, Marshall and Lindsay help answer three kid questions: How do stem cells decide what to become? How do chameleons change color? and... What is Morse code? This special episode features answers from Jessica Whited, Michel Milinkovich, and Mic ... Show More
23m 47s