Malevolent Design - Fungi That Turn Spiders Into 'Zombies'

Spider infected with Gibellula pseudosolita

Chang, Chen-xin, et al (2026)

Spider infected with Gibellula pseudosolita

Chang, Chen-xin, et al (2026)

Inside the Hidden World of Spider-Attacking Fungi | Blog


Parasites are hard enough for creationists to force-fit into their predetermined belief that all things were created by an omnibenevolent god, short of resorting to the near-blasphemous claim that 'Sin' somehow gave a rival creator unfettered access to their god's supposedly perfect creation in order to corrupt and destroy it. That rather undermines the claim of perfection in the first place, because a perfect creation, by definition, ought not to be corruptible.

But even harder for creationists to explain are parasites which, judged by their own favourite pseudo-scientific slogans — 'complex specified information' and 'irreducible complexity' — appear exquisitely adapted not merely to parasitise a living organism, but to consume it from within and then use its body as a platform for producing more parasites. In Pensoft's own popular description, these are "zombie" fungi: araneopathogenic fungi that parasitise spiders, mummify them, and then grow spore-producing structures from their bodies.

For example, newly identified spider-attacking fungi have recently been reported in two papers, published respectively in IMA Fungus and MycoKeys. Together, they add to the growing picture of a hidden diversity of highly specialised fungal parasites adapted to exploit spiders in different habitats.

The first is a new species of Purpureocillium fungus, belonging to the Purpureocillium atypicola group: Purpureocillium atlanticum. It was discovered in Brazil's Atlantic Forest, where it infects trapdoor spiders hidden in their burrows in the forest floor. The fungus covers the spider in cotton-white mycelium and eventually sends a purple fruiting structure up from the spider's cephalothorax, allowing spores to be released above the burrow. This discovery also shows that Purpureocillium atypicola, originally discovered in Japan in 1897 and thought to be a single species, is actually a global complex of multiple species.

The second paper reports three new species of Gibellula fungi — Gibellula pseudopigmentosa, Gibellula pseudosolita, and Gibellula sinensis — discovered on spiders in China and Laos. These fungi erupt from spider bodies in stalked, branch-like structures, and the species were distinguished from one another by differences in their reproductive structures, spore-forming bodies and phylogenetic relationships.

Refuting Creationism - A Cheesy Tease For Creationists - Observed Evolution in Cheese-Rind Fungi

Original green mould.

Evolved white mould several years later.

Cheese Fungi Help Unlock Secrets of Evolution | Tufts Now

Bayley Hazen Blue

Scientists have found a textbook example of evolution in progress—in the very mould used to mature cheese in caves.

“Show me an example of witnessed evolution!” is one of the stock demands from creationists in online debates. But it’s a trick request. No sooner is an example given than they hurriedly shift the goalposts, redefining evolution into a childish caricature. Instead of the real scientific process, they demand to see a cow turn into a whale overnight, or a mouse suddenly grow wings—some grotesque parody of “macro-evolution” that no biologist has ever claimed happens. Ironically, if such nonsense did occur, it would actually falsify the theory of evolution rather than confirm it.

This intellectual dishonesty is the lifeblood of creationist rhetoric. Their arguments only work by preying on scientific illiteracy in their audience, peddling strawmen and false definitions to cover the absence of any evidence for their own claims.

Meanwhile, science continues as it always has, with evolution properly defined as a change in allele frequency in a population’s gene pool over time. And right on cue, another clear demonstration has just been published in Current Biology.

The researchers studied the fungus Penicillium solitum, which is used to ripen cheese, by following its population over eight years in the controlled cave environment of Jasper Hill Farm. By comparing samples collected in 2016 with those taken more recently, they were able to track both visible and genetic changes in the mould over time.

What they found was striking. The rind colour, once a leafy green, had shifted to a chalky white. Genetic analysis showed this was due to repeated mutations in a pigment-producing gene called alb1, which is responsible for melanin production. In the dark, cave-like conditions, melanin offered no advantage, so natural selection favoured lineages that conserved energy by not producing it. The loss of pigment arose independently several times, through different mutations—including both point mutations and the disruption of the gene by mobile DNA elements.

This is evolution at its most direct: heritable changes in the genetic make-up of a population, producing visible differences in response to environmental conditions. It illustrates a well-known principle called relaxed selection—when a trait is no longer useful, natural selection no longer preserves it, and the trait may fade away. In this case, the shift also altered the appearance and sensory qualities of the cheese, underlining how evolutionary change can have immediate, practical consequences.

Malevolent Designer News - How a Fungus Makes Its Host Destroy Its Own Brain

Beauveria bassiana on unidentified insect.

© Lisa Bennett (CC-BY 4.0)

Fungus ‘hacks’ natural immune system causing neurodegeneration in fruit flies - University of Birmingham

If we are to believe creationists, their god created insects such as fruit flies, Colorado beetles, etc., and then set about devising ways to kill them with, amongst other pathogens, fungi that infect them and destroy them from inside.

One of the problems this supposedly intelligent designer had to overcome was the immune system it had given the insects in order to protect them from the pathogens it was designing to kill them.

According to an open access paper just published in PLOS Biology by a team led by Professor Alicia Hidalgo from School of Biosciences, The University of Birmingham, one species of parasitic fungus, Beauveria bassiana, cleverly turns its host's immune system against its host, making it destroy its own brain. Although this fungus does not affect mammals, so poses no threat to humans, the team warns that it is possible that another fungus could use a similar technique against mammals, including humans.