A newer method of measurement has helped scientists date some stave churches more accurately than in the past. The method shows that several stave churches are older than the dates previously attributed to them.
We can’t take care of the Earth’s species unless we know what species exist. A collaborative project that will help us know more is being launched in Trondheim during The Big Challenge science festival.
Ecologist Daniel H. Janzen has spent virtually all of his half-century career trying to catalogue and understand the creatures in a patch of dry tropical forest in northwestern Costa Rica. Little did he realize his efforts would evolve into building a sea-to-summit conservation area — and a drive to inventory all million species in the country in partnership with the Costa Rican government.