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86
True Australia

The text mentions the Irukandji jellyfish as a highly venomous, small jellyfish measuring only a couple of centimeters.

The claims about the Irukandji jellyfish being highly venomous and small in size are supported by multiple web sources. The Irukandji is indeed one of the world's most venomous jellyfish and causes a severe reaction known as Irukandji syndrome. Additionally, evidence confirms that it measures between 25 to 35 mm, making it one of the smallest jellyfish. This evidence supports both claims effectively, leading to high fact and confidence scores.

June 02, 2026 Language: en 2 claims analyzed

Individual Claims

84
True Biology
The Irukandji jellyfish is highly venomous.
Multiple sources such as Children's Health Queensland and NCBI confirm the Irukandji jellyfish is highly venomous, causing Irukandji syndrome which can be potentially fatal.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 92
Web Consensus Weight 50
Source Quality Score 90
Source Quality Weight 25
Llm Reasoning Score 85
Llm Reasoning Weight 25
Weighted Total 84
Evidence Summary Multiple web sources confirm high venomousness.
87
True Biology
The Irukandji jellyfish measures only a couple of centimeters.
Sources such as Britannica and Study.com state that the Irukandji jellyfish measures about 25 to 35 mm, affirming it is very small.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 95
Web Consensus Weight 50
Source Quality Score 92
Source Quality Weight 25
Llm Reasoning Score 90
Llm Reasoning Weight 25
Weighted Total 87
Evidence Summary Multiple sources confirm the small size.

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