Testing if Sharks Can Smell a Drop of Blood

Mark Rober, a former NASA engineer, takes on a thrilling experiment to debunk common shark myths. With the help of marine biologist Luke Tipple, Mark sets out to test if sharks can truly smell a single drop of blood in the water from a mile away.

Using a series of innovative contraptions, Mark and Luke deploy four surfboards in shark-infested waters, each releasing a different substance: fish oil, cow's blood, seawater, and human urine. By analyzing the sharks' reactions, they aim to determine which scent is most attractive to these apex predators.

The experiment takes a surprising turn as the sharks show little interest in the fish oil, seawater, and urine. However, the blood-filled surfboard becomes a magnet for sharks, drawing them in with an undeniable allure.

To further investigate the sharks' sensitivity to blood, Mark and Luke conduct a second experiment, this time using human blood. They slowly release drops of blood into the water at different rates to observe the sharks' response. The results are astonishing, as the sharks remain indifferent to the subtle blood trail.

Through this scientific exploration, Mark and Luke challenge common misconceptions about sharks and provide valuable insights into their behavior. This video offers a thrilling adventure filled with suspense, humor, and groundbreaking scientific discovery.