Chien C. Lee

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  • The dreaded Bullet Ant (Paraponera clavata), in possession of the most painful sting on the planet, here has fallen prey to an even more sinister organism: a parasitoid fungus (Ophiocordycipitaceae). The ‘zombification’ of insects in tropical rainforests has been well documented, but the incredibly precise way that these fungi control the behavior of their hosts prior to consuming them is not yet fully understood. Recent research indicates that, rather than invading the brain which might kill the insect prematurely, the fungus may directly control the muscles of its host like a puppet. In this way it can lead the ant to a location where it is more likely to infect others. Yasuní National Park, Ecuador.
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  • Bullet Ant (Paraponera clavata) killed by parasitoid fungi (Ophiocordyceps ponerinarum). Yasuní National Park, Ecuador.
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  • Bee killed by entomopathogenic fungi (Ophiocordyceps sp.). Maliau Basin Conservation Area, Sabah, Malaysia (Borneo).
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  • Although normally solitary, male Longhorn Bees such as these (Thygater sp.), often form sleeping aggregations on the undersides of leaves at night – a behavior aimed at reducing predatory risk. However, this group seems to be unaware of the imminent danger now lurking in their midst: while sleeping, one of their group has quietly been devoured from inside out by a pathogenic fungus (Ophiocordyceps humbertii). Long fruiting bodies now grow from the carcass of the dead bee, eventually releasing copious spores that will colonize the fungi’s next victim. Panamá Oeste, Panama.
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  • A robber fly (family Asilidae) killed by parasitic fungus (Ophiocordyceps dipterigena). This fungus specializes in feeding on adult flies. After consuming the interior of its host the cream-colored fruiting bodies emerge and release spores to infect new insects. North Sulawesi, Indonesia.
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  • The haunting hollow skeleton of a fly is all that remains after being consumed alive by a parasitoid fungi (Ophiocordyceps cf. dipterigena) in the New Guinean rainforest. Two different types of fruiting bodies have emerged from the fly's body: the dorsal 'mushrooms' (ascostroma) are perfectly positioned to release tiny spores on the fungi's next victim. The tropics hold a great diversity of these entomopathogenic fungi, with undoubtedly many undescribed species, each apparently tailored to target specific insect hosts. West Papua, Indonesia.
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  • Although the ‘zombie ants’ are undoubtedly the most infamous, entomopathogenic fungi come in a great diversity of species, many of which specialize in a particular type of prey. Here, a weevil has been killed by Ophiocordyceps curculionum, and is now a host to three fruiting bodies that have been releasing new spores. Like the mind-controlling fungi in ants, this pathogen similarly manipulates the weevil like a puppeteer to position itself in the ideal spot before it dies. Yasuní National Park, Ecuador.
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  • A Golden Forest Ant (Polyrhachis ypsilon) has been killed by a parasitic Ophiocordyceps fungus which has consumed its body. Before dying, the behaviour of infected ants is controlled by the fungus, and are directed to climb to a suitable location usually on the underside of a leaf. There the fungus kills its host and produces fruiting bodies which releases spores to infect more ants below. Sabah, Malaysia (Borneo).
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