What animal has the highest blood pressure of any species?
The animal with the highest blood pressure of any species is the small copepod crustacean called Oithona davisae. This tiny creature, which is only a few millimeters long, has been found to have a heart rate of over 500 beats per minute and a blood pressure of over 2,000 mm Hg. This allows it to survive in the high-pressure environment of the deep ocean.