/sci/ - Science & Math

>>10726293
>archosaurids had this arrangement, all dinosaurs, pterosaurs etc.

So the debate on how large dinosaurs could oxygenate their brains is solved by them having blood that's supersaturated with oxygen due to extremely efficient respiratory systems?
Would they require better blood for this to work? Does that mean dinosaurs had a different type of blood capable of containing this super high oxygen content?

even ignoring the square cube law, there's a limit in size due to pressures exerted on the body and blood. Unless dinosaurs had some extremely weird blood, or they were all aquatic dinosaurs I don't believe they could be much bigger than the ones we know today.

Blue Whale, even living in water.
Has the largest heart 1,500 lb (680 kg)

#2 Elephant... Nope it's the Giraffe, about 11 kg (25 lb) and must generate approximately double the blood pressure required for a human to maintain blood flow to the brain, because of it's long NECK.
Now imagine a Sauropods heart size?

How does an animal that size not collapse under it's weight?

There's also the problem of blood pressure differential between top and bottom parts of their body. What I can't get is their bone. How can their bones support their massive weight? One theory is there was less gravity/mass on the Earth back then.

The one theory that everyone ignores is....all dinosaurs lived in the ocean and had gils.

>>6959517
>heaviest ever, but not largest

PFFT. Blue whales weight nothing at all because their neutrally buoyant in the water.