BrainStuff Classics: How Do Snails Grow Their Shells?

BrainStuff

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Science, Technology, Natural Sciences

3.9 • 1.7K Ratings

🗓️ 21 August 2021

⏱️ 7 minutes

🔗️ Recording | iTunes | RSS

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Summary

A snail's shell is its permanent home -- but how do these wee, soft, slimy creatures grow hard, beautiful shells? Learn how it works in this classic episode of BrainStuff, based on this article: https://animals.howstuffworks.com/marine-life/do-snails-get-shells.htm

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Transcript

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0:00.0	13 Days of Halloween Penance. Season 4 of the award-winning horror fiction
0:05.3	podcast presented in immersive 3D audio.
0:08.2	If I am under arrest, you have to tell me what I'm charged with.
0:11.3	Starring Natalie Morales of Parks and Recreation and Dead To Me.
0:14.9	Please, you've been some kind of mistake. I'm not supposed to be here.
0:18.4	How do you know? I'm innocent.
0:20.3	Are any of us truly innocent?
0:22.3	Premiering October 19th, ending Halloween.
0:25.2	Listen to 13 Days of Halloween on the iHeartRadio app Apple podcasts
0:29.6	or wherever you get your podcasts.
0:34.3	Welcome to Brain Stuff, a production of iHeartRadio.
0:38.6	Hey, Brain Stuff, Lauren Volgobom here with a classic episode for you.
0:43.1	This one deals with the exoskeletal science of one of my personal favorite animals,
0:47.6	snails. I keep some aquatic snails as pets, and watching them hatching grow
0:52.7	is absolutely wild, if not exactly fast-going. Here's how it works.
0:59.6	Hey, Brain Stuff, Lauren Volgobom here.
1:02.1	Snails are very attached to their shells.
1:05.0	Literally, these slow-moving mollusks grow protective shells to which they are physically connected.
1:10.8	Eviction means death. No snail can survive being torn away from its private calcified fortress.
1:16.7	But how exactly do snails' shells develop?
1:19.8	And what sets them apart from other types of animal armor?
1:23.2	Before we get to that, a bit of snail 101.
	...

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