Storyline. The series The River is based on an adventure of a crew, searching for someone, along the adventure they find many strange and horrible things in the Amazon area and they want to find out what it is and if they can someday find the missing explorer.search | amazon river |.toryline. The series The River is based on an adventure of a crew, searching for someone, along the adventure they find many strange and horrible things in the Amazon area and they want to find out what it is and if they can someday find the missing explorer. search | amazon river |.
Summary of Fossil Evidence. Fossils are evidence of organisms that have existed. The fossils may consist of clues about the organism, such as its tracks or feces, or they may be a part of the organism, such as a bone or other body part.
Animals that went extinct before the rise of humans, such as dinosaurs, are known only through the fossil record. Fossils can reveal how living animal types, such as fish, evolved over time. Fossilized footprints can reveal information about an extinct animal's behavior. The fossil record has been used to determine that marsupial mammals, like koalas, branched off from placental mammals as far back as 125 million years ago.