80
True
Greece
The callipyge genetic mutation in sheep leads to unusually large butts.
The claim that the callipyge genetic mutation in sheep results in very large butts is generally supported by evidence. The mutation causes significant increases in muscle mass, particularly affecting postnatal muscle development localized to the pelvic region, which aligns with a larger hindquarter appearance in affected sheep. Key studies and authoritative sources, such as USDA ARS and PubMed, corroborate the muscular hypertrophy linked with this mutation without contradicting the primary assertion of increased size around the buttocks. Therefore, the claim is factual based on the available evidence.
Individual Claims
80
True
Science
A genetic mutation in sheep called callipyge results in very large sheep butts.
The claim is supported by multiple sources confirming that the callipyge mutation leads to increased muscle mass, especially in the hindquarters, resulting in a larger buttocks appearance. USDA ARS and PubMed highlight the mutation's effects on postnatal muscle hypertrophy localized to the pelvic area. Given the reliable sources and consistent findings, the claim is well-supported.
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
85
Llm Reasoning Weight
25
Weighted Total
80
Evidence Summary
2 web sources (USDA ARS, PubMed) corroborate the claim.
