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Re: cause of Gigantism in sauropods



>>  And then who and what conceals the hatchlings? Oh, sea turtles do
>>  have a certain predation pressure problem right there......
>
> 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. :(

No, baby sauropods were meals on wheels, the attrition rate must have
been enormous - but then, in case of a sudden crisis that drops
population levels of both predator and prey, the survival rate jumps
up due to the high chance of not meeting a predator, and the
population can recover.