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" ... But biologists do know that water lilies hold a unique place in the evolutionary tree of plants. They diverted from other related plants during the age of the dinosaurs, and have characteristics in common with both flowering plants and flowerless plants. By comparing the water lily genes to those of other plants, botanists can get a better understanding of which plant genes are very important for plant evolution and development (likely the ones that have not changed much between species) and which hold more specific information to individual species. That kind of information is useful for agriculture and conservation research, for example. ... "