There is ongoing research about the effects of human activity on them.
Several risk factors have been proposed and are the subject of ongoing research.
The origins of the city are subject to ongoing research.
Recent and ongoing scientific research however, is changing this view.
The Museum also has an ongoing research and restoration program.
Ongoing research is now revealing they are a species complex.
Ongoing research is constantly finding more effective ways to put the species to use.
Rose said that "ongoing medical research would not be completed until late summer" 2010.
The figure could rise by a maximum of another 10,000 due to ongoing research.
However, there is ongoing research to improve the efficiency of the production process.
