>>New research, published today in the journal The Anatomical Record, suggests that gigantic dinosaurs, including the Tyrannosaurus rex, evolved systems to cool their blood on its way to their brains.

But, in what was a surprise to the researchers, many of these dinosaur groups came up with slightly different ways to do so.<<

>>“They had really enormous volumes but relatively low surface areas, which means once they heated up, it would be hard for them to cool down in the absence of special mechanisms.”

That posed a problem, because their brains (like ours), eyes and other sense organs were very sensitive to temperature.

If they got too hot, basic functions the brainstem controls, such as blood pressure and heart rate, would become compromised, Professor Witmer said.

A bad case of heat stroke could potentially be fatal.<<

Dr Ruger Porter (left) and Professor Larry Witmer (right) – surrounded by skulls of some of the dinosaurs they looked at.

https://www.abc.net.au/news/science/2019-10-17/huge-dinosaurs-cooling-strategies/11604992

PermeateFree said:

>>New research, published today in the journal The Anatomical Record, suggests that gigantic dinosaurs, including the Tyrannosaurus rex, evolved systems to cool their blood on its way to their brains.

But, in what was a surprise to the researchers, many of these dinosaur groups came up with slightly different ways to do so.<<

>>“They had really enormous volumes but relatively low surface areas, which means once they heated up, it would be hard for them to cool down in the absence of special mechanisms.”

That posed a problem, because their brains (like ours), eyes and other sense organs were very sensitive to temperature.

If they got too hot, basic functions the brainstem controls, such as blood pressure and heart rate, would become compromised, Professor Witmer said.

A bad case of heat stroke could potentially be fatal.<<

Dr Ruger Porter (left) and Professor Larry Witmer (right) – surrounded by skulls of some of the dinosaurs they looked at.

https://www.abc.net.au/news/science/2019-10-17/huge-dinosaurs-cooling-strategies/11604992

And how do humans do this?

read that, didn’t see the word homeostasis, thought i’d add it, nothing more alienating than detecting an absence of your own favorite words

wasn’t the best writ article, still a half interesting read though

PermeateFree said:

>>New research, published today in the journal The Anatomical Record, suggests that gigantic dinosaurs, including the Tyrannosaurus rex, evolved systems to cool their blood on its way to their brains.

But, in what was a surprise to the researchers, many of these dinosaur groups came up with slightly different ways to do so.<<

>>“They had really enormous volumes but relatively low surface areas, which means once they heated up, it would be hard for them to cool down in the absence of special mechanisms.”

That posed a problem, because their brains (like ours), eyes and other sense organs were very sensitive to temperature.

If they got too hot, basic functions the brainstem controls, such as blood pressure and heart rate, would become compromised, Professor Witmer said.

A bad case of heat stroke could potentially be fatal.<<

Dr Ruger Porter (left) and Professor Larry Witmer (right) – surrounded by skulls of some of the dinosaurs they looked at.

https://www.abc.net.au/news/science/2019-10-17/huge-dinosaurs-cooling-strategies/11604992

Will read this later.