A visit to Panama, the canal, including the fossils that have been found while digging the canal and a more recent widening, and the Smithsonian Tropical Research Institute (STRI). The fossil record helped determine that North and South ...See moreA visit to Panama, the canal, including the fossils that have been found while digging the canal and a more recent widening, and the Smithsonian Tropical Research Institute (STRI). The fossil record helped determine that North and South America weren't connected until about 3 million years ago. Written by
jtyroler
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