Mexican prairie dog of prairie dogs and associated species, such as shorebirds and birds of prey. Pronatura Noreste, as of February 2007, has signed conservation easements with "ejidos" and private owners for the protection of more than 42,000 acres (170 km) of Mexican prairie dog grasslands. Mexican prairie dog The Mexican prairie dog ("Cynomys mexicanus") is a diurnal burrowing rodent native to Mexico. Treatment as an agricultural pest has led to its status as an endangered species. They are closely related to squirrels, chipmunks, and marmots. "Cynomys mexicanus" originated about 230,000 years ago from a peripherally isolated population of the more widespread "Cynomys
Gunnison's prairie dog of the most advanced forms of natural language known to science." The bark is a combination of one or two high-pitched audible syllables, with the second syllable lower and deeper. Prairie dogs have a unique sound to identify each of various predators. They also have different barks for warning and "all-clear" signals. Researchers and experts have been able to classify up to 11 distinct warning calls the prairie dog uses to communicate. Also, females with offspring are more likely to give off a warning bark than males. The warning signal is their primary source of survival because it alerts the