Most national boundaries have more to do with politics than science, but researchers have discovered that the Canada-U.S. border has a geological basis that has divided the two countries for more than 100 million years. Scientists from the University of ...


Recent comments
5 years 43 weeks ago
15 years 7 weeks ago
15 years 9 weeks ago
15 years 9 weeks ago
15 years 25 weeks ago
15 years 25 weeks ago
15 years 33 weeks ago
15 years 50 weeks ago
16 years 32 weeks ago
16 years 32 weeks ago