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The Zebra Finches' Battle to Survive

Season 1 Episode 3 | 3m 00s

In the Australian Outback, we follow Mylene Mariette as she sets up an unusual experiment that reveals something extraordinary about the zebra finches battle to survive. When it gets really hot out here, these small birds can sing to their unhatched eggs, alerting them to the baking conditions. This in turn causes the new born chick to be smaller, increasing their chance for survival.

Extras
A momentous occasion as a new Buffalo herd are returned to the Fort Peck Reservation.
Plants are reacting to our changing climate so scientists are looking to soil for answers.
Wildebeest numbers rose after eradicating rinderpest. The Serengeti ecosystem rebounded.
Forgotten and overlooked, grasslands could hold the key to our planet’s survival.
billy barr tells us the lilies emergence is out of sync with the hummingbirds arrival.
Red foxes are moving further north following the encroachment of the tree line.
Reindeer are playing a crucial role in preserving the tundra by eating forest vegetation.
At the planet’s frozen extremes, animals can reveal the changes taking place.
The ibex are Israel’s newest big city resident with rising desert temperatures.
In the Gobi Desert, Adiya Yadamsuren tracks a wild camel to a water hole.
Forgotten and overlooked, grasslands could hold the key to our planet’s survival.
Ice
At the planet’s frozen extremes, animals can reveal the changes taking place.
In the hottest places, species are going to extraordinary lengths to survive.
Remarkable island wildlife reveals insights into our rapidly changing planet.
Animals have a surprising story to tell about our rapidly changing planet.