fill an approximately 25-million-year gap in knowledge by reconciling the molecular clock—or pace of evolution—with the fossil spore record—the physical evidence of early plant life gathered by ...

this is called a life cycle. Plants start as seeds or bulbs. With the right temperature and water, most plants first grow roots underground to find water and nutrients in the soil, and then a ...

Once nuclear power plants have reached the end of their nominal licensed operating life, they must undergo special safety reviews and ageing assessments of their essential structures, systems and ...

Scientists discovered a 400-million-year-old fossil known as Prototaxites, which does not belong to any known life form ...

You see, bryophytes were the first plants to start growing on land instead of in water. Before that, there was pretty much no multicellular life on land at all —animals all lived in water ...