The Chihuahua is a Mexican breed of toy dog. Chihuahuas can be found worldwide now but their homeland is up for debate. Most likely a native of Mexico, some experts in the breed have theorized that the Chihuahua may have been brought from the island of Malta by the Spanish conquistadors. Others speculate that the breed may have originated in China. Things get even stranger when we learn that early writing made wild claims, such as that the Chihuahua wasn’t fully canine, or that they were even related to chipmunks.
Mexico has nine distinct regions: Baja California, the Pacific Coastal Lowlands, the Mexican Plateau, the Sierra Madre Oriental, the Sierra Madre Occidental, the Cordillera Neo-Volcánica, the Gulf Coastal Plain, the Southern Highlands, and the Yucatán Peninsula. An important geologic feature of the Yucatán peninsula is the Chicxulub crater, the scientific consensus is that the Chicxulub impactor was responsible for the Cretaceous–Paleogene extinction event. Although Mexico is large (a little over 2,000 mi (3,219 km) in length from its farthest land points), much of its land mass is incompatible with agriculture due to aridity, soil, or terrain. In 2018, an estimated 54.9% of land is agricultural; 11.8% is arable; 1.4% is in permanent crops; 41.7% is permanent pasture; and 33.3% is forest. Mexico is irrigated by several rivers, with the longest being the Rio Grande, which serves as a natural eastern border with the United States. The Usumacinta River in turn, serves as a natural southern border between Mexico and Guatemala.
Learn more about Mexico's geography on Wikipedia.