[Old Professer]

I am still trying to figure out how the blood circulated if this thing raised its head to the full extent.

[Joe 6-pack]

Indeed. Even something as *small* as a giraffe needs to maintain substantial blood pressure merely to remain conscious. Granted, a dinosaur probably had a much more primative, undeveloped brain as compared to a camelopard, but it still needed some degree of circulation up at the end of the 56 feet of neck.

[Young Werther]

Dinosaurs had multiple hearts to overcome gravity. Their brains were contained in more than one location so you might say that like the Apple III they performed distributed processing.

Now you know where the term dinosaur operating system comes from.

[PIF]

I am still trying to figure out how the blood circulated if this thing raised its head to the full extent.

—

And while you are at it, figure out how an animal that large and massive could even exist if gravity is constant ... the size and mass of land animals is a funtion of gravity strength. No such massive land animal could exist today - it would be crushed by its own weight.