Scattered throughout Mexico and central America are pools where water surfaces from underground networks of caves, which the ancient Maya said were gateways to the underworld. Biologists have now...
-- Read more on ScientificAmerican.com
More...
Scattered throughout Mexico and central America are pools where water surfaces from underground networks of caves, which the ancient Maya said were gateways to the underworld. Biologists have now...
-- Read more on ScientificAmerican.com
More...