Scientists aren’t worried about fungi evolving to turn people into zombies, but rising temperatures do pose a real risk of making fungal infections worse
, infecting a bullet ant. Cordyceps are a broad category of insect parasites, and a popular health supplement. But only ophiocordyceps control their host’s body.
Each zombie-creating fungus species evolved to match a specific insect, so unique strains have little effect on an organism except for the one they evolved to infect. For example, a cordyceps that evolved to infect an ant in Thailand can’t infect a different ant species in Florida. “One of the reasons why we have skin fungi is they can get between folds of skin. Those are sort of wet, dark places fungi can proliferate that are cooler than body temperature,” says“As the Earth warms up, there is concern that the change between environment temperature and body temperature won't be as dramatic,” he says. Hypothetically, that would make it easier for fungi that have evolved to withstand hotter outdoor temperatures to also be able to survive inside the human body.
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