CIENTISTS PLAN TO BRING ICONIC species back from extinction, which might have environmental benefits. Notably, the woolly mammoth could be a flagship species for conservation, highlighting the plight of endangered animals sharing its habitat. Mammoths reintroduced to the Arctic tundra would also work as ‘ecosystem engineers’, trampling trees and permafrost. This might recreate ice-age grassland, a surface that better reflects sunlight and traps carbon, helping to fight climate change. But
