In the arteries of the rete mirabile these spirits were further refined and, by a process of exhalation (anathymiasis), became animal spirits in the brain.
In giraffes, a rete mirabile in the neck equalizes blood pressure when the animal bends down to drink.
Finally, they suggest that warm venous blood perfusion at the ophthalmic rete facilitates warming of cerebral blood that supplies the hypothalamus.
In the upper neck, a rete mirabile prevents excess blood flow to the brain when the giraffe lowers its head.
Also, he discovered the "rete mirabile" in whales and dolphins, a vascular network that allows these mammals to survive and adapt in ocean depths.
Animals have adapted with specialized organs, such as a rete mirabile, an organ that efficiently transfers heat.
Horses lack a carotid rete and instead use their sinuses to cool blood around the brain.
Instead, the southern bluefin tuna seems to implement a system that regulates how actively the rete mirable system heats the tissues.
