Saturday, July 7, 2018

Giraffes have blood circulation systems

Giraffes have one of the most wonderful blood circulation systems of the world. Did you ever think how it manages to balance a huge range of its head’s movements without having any waving circumstance in its blood pressure? (This blood pressure generates not only by the force of heart beat but also the gravitational force). Whole this miracle has done by thousands of tiny laminas in its veins.





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