Angiotensin II is a potent vaso-active peptide that causes blood vessels to constrict, resulting in increased blood pressure. Angiotensin II also stimulates the secretion of the hormone aldosterone from the adrenal cortex. Aldosterone causes the tubules of the kidneys to increase the reabsorption of sodium and water into the blood.
The most reliable record of a Blue Shark at speed is 24.5 miles (39.4 kilometres) per hour for a 6.5-foot- (2-metre-) long individual. The Shortfin Mako (Isurus oxyrinchus) is probably the champion speedster among sharks.
Answer: In a race among the sharks, the shortfin mako shark (Isurus oxyrinchus) would be the winner. The robust, streamlined shortfin mako shark is reported to have been clocked at 22 mph, although some sources say it can reach up to 60 mph.This may be because it is capable of chasing even quicker fish, the sailfish and swordfish, which can reach speeds over 60 mph (when leaping).The mako can also perform giant leaps of up to 20 feet out of the water. Sources: 1  R. Aidan Martin.he robust, streamlined shortfin mako shark is reported to have been clocked at 22 mph, although some sources say it can reach up to 60 mph.