The Kid Should See This

Why don’t birds lay ‘square’ eggs?

What’s the most common egg shape? Why are they shaped that way? And why don’t birds lay cubed eggs? Joe Hanson explores the science behind eggs and their shapes in this puntastic episode of It’s Okay to Be Smart. He explains:

What is “egg-shaped” even? I used to think it was the shape of a chicken egg. Then one day I saw a collection of eggs from lots of different bird species, and I realized just how many different kind of egg shapes there really are! I had to know why. And it turns out a couple teams of scientists had wondered the same thing. Here’s what science says about why eggs are egg-shaped, if that’s even a thing, which I’ve learned it might not be. Evolution of bird eggs, go!

egg shapes - chart
Also, can you actually stand on two dozen eggs without breaking them? Hanson attempts to find out:

standing on two dozen eggs
We also recommend the wonderful book The Book of Eggs: A Life-Size Guide to the Eggs of Six Hundred of the World’s Bird Species.

Plus, be sure to watch these videos: The Guillemot egg, an egg that saves its own life, The Field Museum’s amazing egg collection, and How Birds Get Oxygen Inside Their Eggs.

This award-winning video collection is reader-supported. Become a sustaining member to keep TKSST online and free for everyone, including teachers and parents who use it as a resource to spark learning and curiosity for kids.

🌈 Watch these videos next...

Stop-Motion Biscuit Cake: A chocolate biscuit cake that makes itself

Rion Nakaya

How does a chick hatch from an egg?

Rion Nakaya

The Field Museum’s amazing egg collection

Rion Nakaya

How Joe Hutto parents and talks with wild turkeys

Rion Nakaya

Divers may have discovered the largest squid egg mass ever seen

Rion Nakaya

A Kiwi chick struggles to hatch at Auckland Zoo

Rion Nakaya

The OptiBreaker egg-breaking machine

Rion Nakaya

How to make bouncing eggs – ExpeRimental

Rion Nakaya

Polar Bears Eat Goose Eggs: New eating habits in warmer climates

Rion Nakaya

Get smart curated videos delivered every week.    
Subscribe