Genetic research reports that Chihuahuas have some coyote ancestry, indicating the breed is partly derived from wild coyote lineages. The study links the finding to traits that may help explain why the small breed is widely described as “small but mighty.”
Both sources describe the result as new evidence of genetic diversity within domestic dog breeds. The research also places the Chihuahua’s origins in Mexico, while noting that the breed has since become a popular companion dog worldwide. The outlets emphasize different takeaways—one focuses on how the ancestry might relate to the breed’s reputation, while the other frames the finding more broadly as an example of diversity across dog populations rather than a single explanation for temperament or behavior.
