How the Squid Lost Its Shell
Category:
News & Politics
By:
outis
•
last year
•
3 comments
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.
PBS's videos are always worth watching.
jrDiscussion - desc
Enjoy
Interesting, thanks for posting
Great video.