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A mysterious mass die-off of sea creatures in the San Francisco Bay has been solved. A popular parasite, Miamiensis avidus, has been blamed for the fatalities of hundreds of sharks, rays, and other species.
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A lot of creatures washed up on shores and died concerning February and July, 2017, and isolated strandings continue. Researchers with the Pelagic Shark Research Basis tracked the stranding areas. Necropsies of the leopard sharks uncovered the parasites experienced been entering by way of the sharks’ noses, and feeding on away at their brains, creating them to come to be disoriented. Although it’s even now unclear why the parasites have afflicted so substantially sea lifetime, weakened immune techniques have increased some species’ susceptibility. Harmful toxins and overcrowding in the Bay could be contributing things.

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Mysterious Mind-Ingesting Shark Killer Discovered, While Concerns Keep on being | National Geographic

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