What mammal has the highest blood pressure of any animal?

The mammal with the highest blood pressure of any animal is the giraffe. Its blood pressure must be unusually high because the animal’s heart has to push blood roughly two metres upward to reach the brain, creating a major gravitational challenge.

An adult giraffe’s heart is exceptionally powerful and can produce blood pressures around 200 to 280 mmHg near the heart—far above normal human levels. Thick, muscular heart walls and specialized blood vessels help maintain circulation. The giraffe’s blood is also relatively dense, which supports its long-distance pumping demands.

The giraffe faces the opposite problem when it lowers its head to drink: gravity can suddenly drive blood toward the brain. A network of vessels called the rete mirabile, along with tight skin and valves in the jugular veins, helps control that pressure. The giraffe’s long neck has seven cervical vertebrae, the same basic number found in humans, but each vertebra can be much larger and longer.