"We've been thinkingaboutthisfor severalyears now - we've had a look at a number of different approaches, and didn'thaveanysuccess," oneof the researchteam, DerekTittensor, told BBCNews.
"We all admire the beaver for the way it can turn a linear river into a lake with a dam, but the termites turning the desert into a pattern of oases that allow permanent life even in drought periods for hundreds ofyears - that's much more fascinating, " he told BBCNews.