![On mark Rober's new video, he tested if sharks preferred human or fish blood better. Then he got in a cage, and opened bags of blood. The moments before this were hectic, On mark Rober's new video, he tested if sharks preferred human or fish blood better. Then he got in a cage, and opened bags of blood. The moments before this were hectic,](https://external-preview.redd.it/qwDEvPDC-QON06FOOsTzDKvAaWH-Rqko6mK6KUga4nw.png?format=pjpg&auto=webp&s=a605489c603a5871a62a116d8d2b4155236a0f98)
On mark Rober's new video, he tested if sharks preferred human or fish blood better. Then he got in a cage, and opened bags of blood. The moments before this were hectic,
Shark Week - Ready for a very strange Saturday night? Search for the most unbelievable sharks in the Bahamas on our @discovery TikTok live with Noah Schnapp and Mark Rober from #SharkWeek's
![Shark Week Fact vs. Fiction: Former NASA Engineer Tests if Sharks Can Smell A Drop of Blood in Ocean Shark Week Fact vs. Fiction: Former NASA Engineer Tests if Sharks Can Smell A Drop of Blood in Ocean](https://d.newsweek.com/en/full/1515731/shark-week-blood-water-sharks-mark-rober.jpg)