BYJARED GANS- 06/16/23 3:24 PM ET
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A team of researchers analyzing almost 400 coral reefs found significantly declining numbers of certain shark species, warning that they face a risk of extinction because of overfishing.
The researchersreleased a report in theacademic journal Science on Thursday after analyzing the presence of five common species of sharks that live by coral reefs. They surveyed 391 reefs across 67 countries and territories using almost 23,000 underwater video stations.
The report states that the researchers found global declines between 60 and 73 percent for the five species, and individual shark species were not detected in 34 to 47 percent of reefs.
The decline in shark species has also caused rays to increasingly dominate these reefs, having further implications for the ecosystem at large.
The researchers reviewed four key ray species…
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Exposing the Big Game 
