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.
How do scientists know the age of fossils? Scientists have developed more than a dozen methods for determining the age of fossils, human artifacts, and the sediments in which such evidence is found. These methods can date objects millions of years old. Whatâs more, the methods can be tested against one another to provide a highly reliable record of the past.