Dinosaurs used nose to modify Breathed Air Temperature and keep their brain cool

One of the largest and heaviest dinosaur had just 6.3 cm long brain

In a  new study, paleontologists have discovered that the dinosaurs had an exceptional capability to change the temperature of blood that circulates through their brain, just by the help of the air they breathed. These anachronistic creatures were blessed with an incredibly long, winding nasal passage of which they made best possible use by reducing the brain overheating problem, as in other land mammals.

The research conducted by Jason Bourke, a student researcher at Ohio  University, said that his work paper states the first ever hypothesis test that justifies the myth that these antiquated ones used their nasal cavity can change the temperature of their brains.

For this research, a team of paleontologist led by Jason, lead author of the study, used CT scans to observe the anatomy of nasal passages in two different dinosaurs species followed by the modelling of airflow using 3d reconstruction technique.

The previous research paper stated that these mammals simply used the convoluted passages that provided a large surface, and more time for the inhaled air to get heated up by using comparatively warmer body temperature. Resulting in cooler intake of atmospheric air that helped in keeping their brains cool.

Perhaps there are two methods to warm the inhaled air, Armour–plated dinosaur used convoluted passage, and another one is by using conchal, scroll-shaped bones to heat up inhaled air. Modern species uses latter one to heat up the inhaled air.

“There are two ways that animal noses transfer heat while breathing,” said Bourke. “One is to pack a bunch of conchae into the airfield, like most mammals and birds do – it is spatially efficient. The other option is to do what lizards and crocodiles do and simply make the nasal airway much longer. Ankylosaurs took the second approach to the extreme,” Bourke added.

However, Brouke now observed that in most of the dinosaurs, a corporeal amount of soft active tissues were found in the noses. The research also stated that these tissues were also capable of changing many other attributes, other than just the temperature.

This research has also opened a whole new world of researchers to find out what the other attributes were and how these out-dated but highly advanced species used these attributes.

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