Bears can sniff out human food with impressive efficiency. Consider: A bloodhoundâs nose is equipped with about 230 million olfactory cells (scent receptors). Thatâs 40 times the number in humans. It is estimated a bearâs nose is just as sensitive as a bloodhound (if not more so).
Countries that border Mexico are Belize, Guatemala and the United States. The bodies of water it borders are the Caribbean Sea, the Gulf of Mexico, and the North Pacific Ocean.
View Caption. Mexico City â The Popocatepetl volcano just east of Mexico City has spit out a cloud of ash and vapor 2 miles (3 kilometers) high over several days of eruptions, and Mexico City residents awoke Saturday to find a fine layer of volcanic dust on their cars.he volcano is about 40 miles (65 kilometers) from the airport, which is in turn a few miles east of the city's center. The Environment Ministry has urged residents to take preventive measures to deal with the ash, including wearing dust masks, covering water supplies and staying indoors as needed.