Attenborough's Wonder of Eggs | BBC Select

Watch the full series on BBC Select: bit.ly/3WqMnOm
Natural history legend Sir 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. But how is an egg made? And why are they that particular shape? This insightful nature documentary reveals the wonder behind these miracles of the animal kingdom.
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[@SharonMartinez]

I love David Attenborough. He has brought so very much to our world.

[@chrisaguilera1564]

Even human embryos during early development have yolk sacs too.