A new skeleton discovered in the submerged caves at Tulum sheds new light on the earliest settlers of Mexico.
Researchers examined the rainfall history of Central America over the last 11,000 years. The results provide context for the development of tropical rainforest ecosystems in the region, and long-sought answers to what has been controlling rainfall in Central America for several millennia.
Ancient skulls from the cave systems at Tulum, Mexico, suggest that the earliest populations of North America may have already had a high level of morphological diversity, according to a new study.
Before they can get started at their field site - a giant cave studded with stalactites, stalagmites and human artifacts -- 15 undergraduate students must figure out how to use their virtual hands and tools. They also must learn to teleport.
New research describes a dynamic climate and vegetation model that explains when regions across Africa, areas of the Middle East, and the Mediterranean were wetter and drier and how the plant composition changed in tandem, possibly providing migration corridors throughout time.
New research provides evidence from Siberian caves suggesting that summer sea ice in the Arctic Ocean plays an essential role in stabilizing permafrost and its large store of carbon.
Researchers have investigated how the illumination of bat caves affects the animals' behavior and whether the color of light makes a difference on their flight. Although red light irritates the small mammals somewhat less than white light, from the researchers' point of view neither the entrance nor the interior of bat caves should be illuminated if bats are present.