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How the Squid Lost Its Shell

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Category:  News & Politics

By:  outis  •  8 months ago  •  3 comments

How the Squid Lost Its Shell



The ancestors of modern, squishy cephalopods like the octopus and the squid all had shells.

In ancient times, their shell was their greatest asset but it eventually proved to be their biggest weakness.

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PBS's videos are always worth watching.



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Outis
Freshman Expert
1  author  Outis    8 months ago

Enjoy

 
 
 
charger 383
Professor Silent
2  charger 383    8 months ago

Interesting, thanks for posting

 
 
 
Kavika
Professor Principal
3  Kavika     8 months ago

Great video.

 
 
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