Students at the University of California, San Diego, managed to capture on camera a school of anchovies so massive that scientists say they haven’t seen anything like it in decades.

Spotted off the coast of San Diego last Monday, the school of finger-sized fish created a dark shadow in the water.

Students used a GoPro camera to capture a giant school of anchovies last week. (Image source: YouTube)

Students used a GoPro camera to capture a giant school of anchovies last week. (Image source: YouTube via KSWB-TV)

According to KSWB-TV, scientists at UCSD’s Scripps Institution of Oceanography say they haven’t seen such a large gathering in more than 30 years.

Phil Hastings told the local Fox affiliate that he had no explanation for the massive school of fish, which was 15 meters to 100 meters wide.

“I don’t think we’ll be able to ferret it out,” he said.

The fish were first spotted by a lifeguard, according to KSWB. UCSD students Julia Fiedler, Sean Crosby and Bonnie Ludka then used a GoPro to record the footage, which has been viewed nearly 40,000 times on YouTube.

(H/T: Mic News)

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