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Re: cause of Gigantism in sauropods

> Well, yeah. Enough hatchlings need to conceal themselves quickly
> enough.

 quite difficult, when you need to feed and outgrow your average
 cycad thicket. It works for aquatic creatures, but not for
 terrestrial ones that grow to several tons before being halfway safe.

How actually does it work for sea turtles? It's completely unknown where they spend their first several years, isn't it? I don't know how to hide in the sea while needing to breathe air.