fromBuzzFeed3 weeks agoFrom Mayans To Olmecs - 10 Ancient Civilizations That Disappeared Under BIZARRE CircumstancesThis shows that the population could never have been as big as some of the earlier estimates suggested.Agriculture
Roam Researchfromwww.theguardian.com3 months agoThe last plant left': can Rapa Nui's extinct tree be resurrected?Restoration efforts for the extinct Sophora toromiro tree on Rapa Nui highlight cultural significance and environmental challenges.