Cool Evolution Trick: Platinum Turns Baby Snails into Slugs - Wired News (blog)

[octobot]

Cool Evolution Trick: Platinum Turns Baby Snails into Slugs
[SIZE=-1]Wired News (blog)[/SIZE]
[SIZE=-1]The internal flat bone of cuttlefish and squid, for example, is thought to be a pared-down version of an ancestral outer molluscan shell. ...[/SIZE]
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[DWhatley]

They don't mention if the offspring of the slug produced shelled or shelless. It would be interesting to continue the experiment with and without the platinum to see what develops.