Claim that Cornell-tested 'Bigfoot' is 58.5% Neanderthal rests on unverified lab result, lacking independent confirmation

What was claimed: Charles "Snake" Stuart — who operates the BigfootsRemains exhibit and promotional site — and media outlets citing him have claimed that DNA testing performed at Cornell University's veterinary DNA lab found the specimen nicknamed "Dack" to be 58.5% Neanderthal and 41.5% human. Stuart and his website present those percentages as evidence that the body is a Neanderthal–human hybrid and a previously unknown relict hominid in North America. What the primary documents show: The assertion of a 58.5% Neanderthal result appears on the specimen operator's own website and in news coverage that repeats Stuart's on-the-record statements. The claimant’s site publishes the percentages and summary conclusions attributed to a Cornell analysis but does not publish a full laboratory report, chain-of-custody documentation, raw sequence data, methods, or a signed report from a named Cornell laboratory analyst. The New York Post article covering the claim also states that Cornell did not respond to a request for comment. (See evidence list.) Independent confirmation: We searched for and did not find a publicly available, independently verifiable Cornell laboratory report, formal publication, or a dataset supporting the 58.5% Neanderthal/41.5% human result. No Cornell news release, peer-reviewed paper, or named Cornell investigator has corroborated the claim. Repeating a claimant’s statement in a news story does not substitute for original lab documentation or peer review. How this compares to established genetics: Decades of ancient-DNA research show that modern non‑African human genomes generally contain only small fractions of Neanderthal ancestry (commonly reported in the range of about 1–4%, with some ancient individuals showing higher values in exceptional cases). A living or recently deceased individual with a majority (≈58.5%) Neanderthal contribution would be unprecedented and would require extraordinary, transparent genetic evidence (raw sequence reads, contamination estimates, reference comparisons, and reproducible analyses) to be credible. Authoritative sources on Neanderthal ancestry make clear why a ~58.5% figure is extraordinary and demands robust primary evidence. Expert and community reaction: Members of the Bigfoot research community and outside researchers have raised strong skepticism about the exhibit and the DNA claim, calling for transparent documentation. Independent observers and investigative commentators have described the exhibition and related claims as unverified and flagged potential financial motives (ticketed exhibits) that increase the need for rigorous independent verification. What readers should understand: The claim that a Cornell DNA test proves a 58.5% Neanderthal composition rests on the operator’s assertion and press coverage that repeats it; it is not supported by a named, publicly available Cornell lab report or by independent genetic verification. Extraordinary genetic claims require primary data release and independent analysis; absent that, the claim remains unsubstantiated. Readers should treat the assertion as an unverified claim and demand the underlying lab documentation (chain-of-custody, signed lab report, sequence data and analytic methods, and ideally independent replication) before accepting it as scientific fact.