在内蒙古草原腹地生长着一种植物，名叫半日花，相传在一年中它只绽放半日，平时悄无声息，当地人对其也不以为然。后来，美国人从卫星云图上发现了这种植物，一研究，发现它们竟然是生长了７０００多万年的远古植物，比具有“活化石”之称的水杉和银杏还早了几千万年。像大熊 In the hinterland of Inner Mongolia, there is a plant called Half-day Flower, which is said to only bloom for half a year in a year. It is quietly silenced by the local people and it is not taken for granted by local people. Later, Americans discovered the plants from the satellite cloud maps. As a result, they discovered that they turned out to be ancient plants that grew more than 70 million years ago. It was tens of millions of years earlier than Metamorpha and Ginkgo biloba, which are called “living fossils.” Like a big bear