Pies: The Chihuahua was named after the state in Mexico where they were discovered

Evidence: 53 • authority: 92

Ancient dog mitogenomes support the dual dispersal of dogs and agriculture into South America.. Archaeological and palaeogenomic data show that dogs were the only domestic animals introduced during the early peopling of the Americas. Hunter-gatherer groups spread quickly towards the south of the continent, but it is unclear when dogs reached Central and South America. To address this issue, we generated and analysed 70 complete mitochondrial genomes from archaeological and modern dogs ranging from Central Mexico to Central Chile and Argentina, revealing the dynamics of dog populations. Our results demonstrate that pre-contact Central and South American dogs are all assigned to a specific cl…

Evidence: 53 • authority: 80

The manganese metallogenic province in the state of Chihuahua, Mexico

Evidence: 53 • authority: 72

The Mexican lapdog, also known as the Ytzcuinte potzotli, is an extinct breed of lap dog originating in Mexico. Noted for its small size, it was the smallest known dog breed. Another Mexican breed, the chihuahua, is the smallest breed still in existence.

Evidence: — • authority: 38