Ancient gravity was much weaker

You ever wonder why nothing REALLY big exists today in nature

elephants today eight tons supersaurs two hundred tons a totally different world. why?

Animal tissue of muscles and ligaments could not support huge dinosaurs even standing up or pump blood up 60 foot necks

Gravity had to be weaker to make dinosaurs nimble

My theory is the core of the planet shifted when single continent formed to keep us in a balanced spin

The land was farther away from the core and had much less gravity so bigness could develop and dominate

I may not be 100% right but think about it. How else could 30 foot leather birds fly?

Oy.

Given that the mass of the earth is constantly growing, by miniscule amounts, gravity is most likely stronger now than it was before. There is no other possible explanation to my weight gain over the years.

Sometimes things are not as they first appear. For example, I can remember a time when I didn't understand how a few baseball players managed to bulk-up so much in a single year. Or why they mysteriously started hitting 500' homers.

That's it! Those dinosaurs were prolly on steroids.