A water hole they’ve dug in desperation hasn’t ... About 18 percent of the rainforest is now gone, and the evidence increasingly supports the warnings. Whether or not the tipping point has ...

which sits near a waterhole, or cenote, and includes between 35 to 40 structures. Photos show a few of these stone ruins, partially overgrown by the rainforest. A map shows the layout of X ...

It is a massive undertaking: building a biodome that will hold over 200 animals native to the rainforest, plus native plants and trees that will span the length of a football field. "The enclosure ...