61
/ 100
Mostly True
North America
The text describes several anatomical features of lobsters, including the unusual locations of their brain, nervous system, teeth, and kidneys, along with how they hear and taste. It mentions that lobsters may favor one claw over the other.
Infact verdict: Mostly True (61/100).
The claims regarding lobster anatomy present a combination of facts and misconceptions. Evidence shows that lobsters have a complex distribution of their organs, such as teeth in their stomach and kidneys in their head. However, some claims like the brain's location in the throat do not match scientific descriptions, which place the brain in the head. Additionally, claims about nervous system location are inaccurate when stating it's in the abdomen. Other claims, such as lobsters tasting with their feet, are substantiated by evidence of chemosensory hairs on their legs. The factuality of these claims has been evaluated based on available web evidence depicting correct anatomical understandings.
How is this score determined? →Individual claims
21
Mostly False
Biology
A lobster’s brain is located in its throat.
The available evidence contradicts the claim that a lobster's brain is located in its throat. Scientific descriptions clearly indicate that the lobster's brain is located in its head.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
10
Web Consensus Weight
50
Source Quality Score
10
Source Quality Weight
25
Llm Reasoning Score
10
Llm Reasoning Weight
25
Weighted Total
21
Evidence Summary
Evidence shows lobster brain is in the head.
25
Mostly False
Biology
A lobster's nervous system is in its abdomen.
The evidence indicates that while the lobster's body contains a nerve cord that runs along its abdomen, the main brain is located in the head.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
20
Web Consensus Weight
50
Source Quality Score
15
Source Quality Weight
25
Llm Reasoning Score
10
Llm Reasoning Weight
25
Weighted Total
25
Evidence Summary
Nerve cord runs through abdomen, not main system location.
86
True
Biology
A lobster’s teeth are in its stomach.
Multiple sources confirm that lobsters have teeth within their stomachs in a structure known as the gastric mill, used for grinding food.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
90
Web Consensus Weight
50
Source Quality Score
100
Source Quality Weight
25
Llm Reasoning Score
90
Llm Reasoning Weight
25
Weighted Total
86
Evidence Summary
Lobsters have stomach teeth (gastric mill).
79
Mostly True
Biology
A lobster’s kidneys are in its head.
Evidence supports the claim as lobsters have kidneys located in their head behind the eyes, part of their excretory system.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
85
Web Consensus Weight
50
Source Quality Score
90
Source Quality Weight
25
Llm Reasoning Score
80
Llm Reasoning Weight
25
Weighted Total
79
Evidence Summary
Kidneys located in the head.
75
Mostly True
Biology
Lobsters hear using their legs.
Research indicates that lobsters detect sound via sensory organs in their legs, supporting the claim that legs are involved in their hearing process.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
80
Web Consensus Weight
50
Source Quality Score
85
Source Quality Weight
25
Llm Reasoning Score
75
Llm Reasoning Weight
25
Weighted Total
75
Evidence Summary
Leg sensory organs used for sound detection.
89
True
Biology
Lobsters taste with their feet.
Multiple sources confirm that lobsters have chemosensory hairs on their feet which function as taste sensors, validating the claim.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
95
Web Consensus Weight
50
Source Quality Score
100
Source Quality Weight
25
Llm Reasoning Score
90
Llm Reasoning Weight
25
Weighted Total
89
Evidence Summary
Chemosensory hairs confirm feet tasting.
50
Mixed
Biology
Lobsters can be right-clawed or left-clawed.
No immediate verification needed; it's a generally accepted characteristic, implying equal potential for either claw dominance.
Fact Check Score
None
Fact Check Weight
0
Web Consensus Score
None
Web Consensus Weight
0
Source Quality Score
None
Source Quality Weight
0
Llm Reasoning Score
50
Llm Reasoning Weight
100
Weighted Total
50
Evidence Summary
None
