Fact Check: Indigenous groups in southern and southeastern Mexico, such as Oaxaca and Chiapas, often have indige...

Claim: Indigenous groups in southern and southeastern Mexico, such as Oaxaca and Chiapas, often have indigenous ancestry reaching 70 to 90%.

Verdict: Unverified (50% confidence)

Explanation: The claim that indigenous groups in Oaxaca and Chiapas have indigenous ancestry is supported by general background information about the presence of indigenous populations in these regions. However, no source explicitly confirms the specific percentage range of 70 to 90% indigenous ancestry. The World Bank Document and other sources provide background on indigenous populations but do not specify the percentage of indigenous ancestry. Therefore, while the presence of indigenous ancestry is suppor...