6 results for “fossil”
Planet Earth
Rocks, Minerals and Fossils
fossils appear in only certain layers, fossils allowed geologists to put Earth's history in order
Article · 4 min read
Life & Biology
Evolution
fossil record shows life changing through time. The oldest rocks hold only microbes. Then, about 540 million
Article · 4 min read
Life & Biology
Dinosaurs and Mass Extinctions
fossil nests show that some brooded them and cared for their young. The flying pterosaurs and the marine
Article · 3 min read
Life & Biology
The Origin of Life
fossils are stromatolites, layered mounds built by mats of microbes, from rocks in Australia 3.5 billion
Article · 4 min read
Plants & Fungi
Fungi
fossils show them in the earliest land plants, 400 million years ago, and plants probably could
Article · 4 min read
Animals
Sharks
fossil shark teeth are so common on beaches. The shape varies with diet: triangular and serrated
Article · 3 min read
