After discovering that cow's blood will attract sharks in droves, Mark Rober's experiment continues with an even more real-world demonstration. To see how wild sharks will get when attracted to real human blood, the team donates their own blood.
By entering your email address, you agree to our Terms of Use and acknowledge the Privacy Policy. discovery and its affiliates may use your email address to provide updates, ads, and offers.
To withdraw your consent or learn more about your rights, see the Privacy Policy.