📖 what
What is the amniotic egg?
Quick Answer
An amniotic egg is a reptile or bird egg with extra membranes that protect the embryo and let it develop on land.
The Full Story
The amniotic egg is a key evolutionary innovation that helped reptiles fully adapt to life away from water. It contains membranes such as the amnion, chorion and allantois, which protect the embryo, manage waste and support gas exchange. A leathery or hard shell helps reduce dehydration while still allowing oxygen to pass through. This type of egg first appeared in early amniotes hundreds of millions of years ago and is shared by reptiles, birds and their ancient relatives.
Key Facts
1.Amniotic eggs can develop on land
2.They have membranes including the amnion and allantois
3.Birds also lay amniotic eggs
YouTube Angle
Suggested video title for this topic:
"The egg that changed vertebrate history"
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