A shark regenerated an entire hole in its fin in under a year and scientists got the amazing transformation on camera

Tech Insider
A live shark's fin with a giant hole in it.
Rather than a tracking tag telling scientists where this shark traveled, its violent removal let them observe an unexpected regeneration process.

Josh Schellenberg, CC BY-ND

4 scientists said they're cutting back on bottled water after measuring the number of microplastics inside

Tech Insider
Tourists fill plastic bottles with water from a public fountain at the Sforzesco Castle, in Milan, Italy.
Scientists discovered hundreds of thousands of mico- and nanoplastics inside popular water bottle brands.

AP Photo/Luca Bruno, File

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