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79
Mostly True Global

Cat urine glows under ultraviolet light because it contains phosphorus.

There is evidence indicating that cat urine contains phosphorus, which can fluoresce under UV light. This phenomenon is consistent with well-known scientific principles that certain substances, including phosphorus, can glow under ultraviolet light. The claim is supported by reputable sources, demonstrating that cat urine indeed glows due to the presence of phosphorus.

April 07, 2026 Language: en 1 claim analyzed

Individual Claims

79
Mostly True Science
Cat urine glows under ultraviolet light because it contains phosphorus.
Web evidence confirms that cat urine contains phosphorus, which fluoresces under UV light. This is a well-supported scientific fact observed in animal biology studies.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 90
Web Consensus Weight 50
Source Quality Score 80
Source Quality Weight 25
Llm Reasoning Score 80
Llm Reasoning Weight 25
Weighted Total 79
Evidence Summary 3 web sources support the claim that cat urine contains phosphorus, which fluoresces under UV light.

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