Forest, Flood and Frost • 2012 • episode "2/2" • Danube - Europe's Amazon

59:06

David Attenborough has a passion for birds' eggs. These remarkable structures nurture new life, protecting it from the outside world at the same time as allowing it to breathe. They are strong enough to withstand the full weight of an incubating parent and weak enough to allow a chick to break free. But how is an egg made? Why are they the shape they are? And perhaps most importantly, why lay an egg at all? Piece by piece, from creation to hatching, David reveals the wonder behind these miracles of nature.

Natural World • 2018 • Nature

59:25

In the final programme of this week-long ocean health check, we find out what the future holds for the next generation of marine life and how we can help.

4/4 • Blue Planet Live • 2019 • Nature

5:40

Did you know that you and I are only 1% human — we've 90 trillion cells which don't belong to us. Yes we are more bacteria than human.

Nature

56:14

Starts in NASA's gravity research aircraft to illustrate the effect of weightlessness. There are surprisingly many plants whose seeds are, in effect, lighter than air.

7/12 • The Living Planet • 1984 • Nature

24:22

To say some baby animals are dependent on their parents is an understatement. At Caversham Wildlife Park in Australia, a koala joey can always be found clinging to its mom's body, and Asian small-clawed otter pups share a lifetime family bond. Enjoy a heart-warming look at mother-baby animal relationships.

S2E4 • Baby Animals • 2016 • Nature

48:05

Every year, thousands of salmon make their way upstream along the nearly 2000-mile-long mighty Yukon River, desperate to reach spawning beds. Eagerly checking their progress is a host of hungry predators, from grizzly bears to bald eagles-all desperate to stock up on protein before the long winter months ahead.

7/8 • Arctic Secrets • 2015 • Nature