A discovery about this bat’s diet was hiding in a Renaissance painting 13%

By Bethany Brookshire0%

6/29/2026, 12:00:00 PM

BS Summary: This article contains 17 faulty reasoning types, including Confirmation Bias, Ambiguity (Equivocation), and Appeal to Authority, with Hasty Generalization as the most egregious example at 26.1% saturation with 81 hits. Analysis detected 539 faulty-reasoning hits from 310 analyzed words, generating a BS Score of 29.7% and a BS Rank of 13% (19,096 of 21,887 articles). This article is better (less manipulative) than 87.20% of the article peer group.

A discovery about this bat’s diet was hiding in a Renaissance painting 
Last fall, scientists documented the greater noctule bat snatching songbirds out of thealr for a snack. 
But while this was a finding relatively new to science, a Renaissance artist knew enough to include the behavior in one of his paintings. 
“Air,” a 1611 allegorical painting by the Flemish artist Jan Brueghel the Elder, depicts more than 60 different airborne species. 
One of them, in the upper right, appears to be a greater noctule bat (Nyctalus lasiopterus), researchers report June 29 in Proceedings of the National Academy of Sciences. 
And in its tiny, oil-painted jaws, it holds a songbird. 
While scientists only directly documented bats snatching birds in the past year, researchers have been publishing clues suggesting that the animals counted avians in their diets since the early 2000s, says Ilias Foskolos, a bioacoustician at Aarhus University in Denmark who was not involved in the work. 
Foskolos has recorded sounds of greater noctule bats catching, dismembering and eating songbirds. 
“It’s an intense event, let’s put it that way,” he says. 
The birdnapping takes place at high altitudes, Foskolos says. 
But evidence falls to earth eventually. 
Researchers have identified telltale feathers from up to 31 songbird species in the excrement of greater noctule bats. 
Brueghel was a native of Brussels, but visited Italy, where the greater noctule bat lives and hunts. 
Even at the time people “probably knew that they go for birds from their droppings,” Foskolos says. 
The finding shows that art “can be a valuable source of natural history information,” Romero-Vidal says. 
While “artists often exercised considerable artistic license,” he says  the Greek muse Urania has yet to be spotted, with bats or otherwise  “they can still preserve valuable observations about the natural world.” 
Article reasoning-pattern comparisonThis article: 20.6%Bethany Brookshire: 7.1%Science News: 2.6%Confirmation Bias20.6%This article: 0.0%Bethany Brookshire: 0.0%Science News: 1.1%Anchoring Bias0.0%This article: 4.2%Bethany Brookshire: 1.0%Science News: 2.6%Availability Heuristic4.2%This article: 0.0%Bethany Brookshire: 0.0%Science News: 1.5%Representativeness Heuristic0.0%This article: 7.7%Bethany Brookshire: 7.7%Science News: 0.4%Hindsight Bias7.7%This article: 0.0%Bethany Brookshire: 0.0%Science News: 2.3%Overconfidence Bias0.0%This article: 9.7%Bethany Brookshire: 2.4%Science News: 4.1%Framing Effect9.7%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.3%Loss Aversion0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.4%Status Quo Bias0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.2%Sunk Cost Effect0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 4.0%Optimism Bias0.0%This article: 5.5%Bethany Brookshire: 1.4%Science News: 1.5%Pessimism Bias5.5%This article: 11.0%Bethany Brookshire: 2.7%Science News: 4.1%Negativity Bias11.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.4%Self-Serving Bias0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.5%Fundamental Attribution Error0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%Actor-Observer Bias0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%In-Group Bias0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%Out-Group Homogeneity Bias0.0%This article: 5.2%Bethany Brookshire: 1.3%Science News: 1.3%Halo Effect5.2%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Horn Effect0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Dunning-Kruger Effect0.0%This article: 5.2%Bethany Brookshire: 1.3%Science News: 1.0%Recency Bias5.2%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.3%Primacy Effect0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%Blind-Spot Bias0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%Ad Hominem0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.2%Straw Man0.0%This article: 16.8%Bethany Brookshire: 4.2%Science News: 4.4%Appeal to Authority16.8%This article: 0.0%Bethany Brookshire: 0.0%Science News: 1.2%False Dilemma0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 1.1%Slippery Slope0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%Circular Reasoning0.0%This article: 26.1%Bethany Brookshire: 7.8%Science News: 3.9%Hasty Generalization26.1%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Red Herring0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.3%Bandwagon0.0%This article: 3.5%Bethany Brookshire: 0.9%Science News: 2.5%Appeal to Emotion3.5%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.5%Begging the Question0.0%This article: 5.5%Bethany Brookshire: 1.4%Science News: 2.5%Post Hoc (False Cause)5.5%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Tu Quoque0.0%This article: 5.5%Bethany Brookshire: 1.4%Science News: 0.5%Burden of Proof5.5%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.3%Appeal to Nature0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.3%Composition/Division0.0%This article: 0.0%Bethany Brookshire: 1.3%Science News: 1.2%Anecdotal0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%No True Scotsman0.0%This article: 17.7%Bethany Brookshire: 4.4%Science News: 1.6%Ambiguity (Equivocation)17.7%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Gambler’s Fallacy0.0%This article: 11.0%Bethany Brookshire: 2.7%Science News: 0.2%Middle Ground11.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.1%Personal Incredulity0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Special Pleading0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Genetic Fallacy0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.7%Unattributed Quote0.0%This article: 3.5%Bethany Brookshire: 0.9%Science News: 0.6%Quote-first Misdirection3.5%This article: 15.2%Bethany Brookshire: 3.8%Science News: 2.6%Biased Writer Voice15.2%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.9%Indoctrination0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.4%Politically Left Leaning Bias0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.0%Politically Right Leaning Bias0.0%This article: 0.0%Bethany Brookshire: 0.0%Science News: 0.4%Attempt to Sell a Product or S…0.0%

310 words analyzed.

Speakers

1speaker31%attributed speech213writer words
Voice mapSelect a segment to jump to its words
Writer's voice • 12 words • 0.0% coverageWriter's voice • 12 words • 0.0% coverageWriter's voice • 16 words • 0.0% coverageWriter's voice • 24 words • 0.0% coverageWriter's voice • 20 words • 0.0% coverageWriter's voice • 28 words • 0.0% coverageWriter's voice • 10 words • 0.0% coverageIlias Foskolos • 47 words • 100.0% coverageIlias Foskolos • 13 words • 0.0% coverageIlias Foskolos • 11 words • 100.0% coverageIlias Foskolos • 9 words • 0.0% coverageWriter's voice • 6 words • 0.0% coverageWriter's voice • 18 words • 0.0% coverageWriter's voice • 17 words • 0.0% coverageIlias Foskolos • 17 words • 0.0% coverageWriter's voice • 16 words • 0.0% coverageWriter's voice • 34 words • 0.0% coverage
Selected voice

Ilias Foskolos

91%flagged-word coverage
97 attributed words100% of attributed speech79% writer coverage
0%25.0%50.0%Biased Writer Voice+48.5 ptsWriter: 0.0%Ilias Foskolos: 48.5%48.5%Quote-first Misdirection+11.3 ptsWriter: 0.0%Ilias Foskolos: 11.3%11.3%

Attribution is sentence-level. Pattern percentages are calculated only from words assigned to that voice.

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Analysis

Hover over highlighted words in the article to view the associated bias or fallacy analysis.