Episodes

S30 Ep13
Cracking the Koala Code
Cracking the Koala Code
Passport
From the miracle of marsupial birth to tender moments of discovery between mother and newborn joey, encounters with threatening forest creatures, battles between rival males and the complex chorus of bellows and grunts that have become so important to science — join leading scientists as they unravel just what a forest needs to support a healthy population of koalas by listening to these marsupial
Premiered May 15, 2012
S30 Ep10
Ocean Giants: Voices of the Sea
Ocean Giants: Voices of the Sea
Humpback whales' songs carry thousands of miles, while a sperm whale scans the ocean depths with a sonar laser beam louder than a thunderclap. "Voices of the Sea" reveals a surprising underwater world where sound takes the place of sight.
Premiered April 10, 2012
S30 Ep9
Ocean Giants: Giant Lives
Ocean Giants: Giant Lives
The first hour of Ocean Giants enters the world of the great whales, including the Blue Whale, the largest animal on the planet.
Premiered March 27, 2012