Scientists use genetics and climate reconstructions to track the global spread of modern humans out of Africa17 Sep 2012
Research indicates the out-of-Africa spread of humans was dictated by the appearance of favourable climatic windows.
Findings point to common ancestry to explain genetic similarities.
Research provides new insights about what caused the extinction of many of the world’s big animals over the last 100,000 years.
Fishermen barely eking out a profit because of overfishing of their target stock, shrimp, are now surviving by selling their bycatch (the low-value fish also caught in the large, indiscriminate nets). Although good for the fishermen, scientists warn that the prolonged trawl fishing along certain areas will lead to an "ecological catastrophe" and the "permanent loss of livelihoods for fishers" as well as other individuals who work in the industry.
A new study out today found that many nations throughout the world, including the United Kingdom, are seeing an annual increase in visitors to their conservation areas.