as many threatened species today are found on islands. The handful of Caribbean mammals that still exist today are the last survivors of a unique vanished world and represent some of the world's top conservation priorities."
as many threatened species today are found on islands. The handful of Caribbean mammals that still exist today are the last survivors of a unique vanished world and represent some of the world's top conservation priorities."
though they caution that the measurements identified in this study differ from those used to sex modern cremated remains, indicating that sexually diagnostic traits differ between populations across time and space. Nonetheless, they suggest that, for ancient populations with large sample sizes, thestati...
Their disappearance was followed by an appearance of our species (物种): Homo sapiens (智人modern human beings).Neanderthals are a species of early humans that once lived in Europe and Asia, which died out about 40000 years ago. Homo sapiens arrived in Europe a few thousand years later....
2.It is widely believed that biodiversity(生物多样性)is promoted to save species.But in reality species exist only as part of ecosystems and cannot survive unless their ecosystems are protected along with as much as possible of the diversity they contain. Protecting habitats(栖息地)is important ...
Asteraceae and Poaceae correspondingly decline in relative sedaDNA abundance while grazing megafaunal DNA largely disappears from our dataset. This suggests that, at least in the Klondike,Mammuthus primigeniusmay have been the first megafaunal species to undergo a local population reduction after ~20,000...
Despite Taranto, Italy's long industrial history, the same dolphin population has thrived for millennia. Residents are fighting to keep it that way.
Most species of this genus and many other plant species perished during the glacial epochs of the Tertiary period. However, G. biloba is considered to have survived in southern China because of the warm climate. Natural Ginkgo trees are said to still exist in southern China. G. biloba has ...
Animals are to be found everywhere in prehistoric art. being the favourite subjects of hunters, herdsmen, and breeders. We can recognize species and breeds that still exist today. These pictures also furnish us with precious contemporary documents of animals now extinct from the region of the pain...
In this work, we perform a proteome-wide comparison of 3D protein structure on two representatives of ancient archaeal and bacterial species that we isolated in previous studies (Fig. 1), as additional information beyond sequences to explore the potential ancestor of early archaea and bacteria. On...