If you are interested in learning more, you may want to join a fossil club.Fossil clubs can tell you where best to find fossils near your home.Some types of relative dating techniques include climate chronology, dendrochronology, ice core sampling, stratigraphy, and seriation.Seriation uses the assumption that once a tool was developed, its use would become more widespread.If such a behavior is even partly genetically determined, it will tend to become widespread in the population.Then, even if circumstances change such that it no longer provides any survival or reproductive advantage, the behavior will still tend to be exhibited -- unless it becomes positively disadvantageous in the new environment.
The term can also be applied to larger groups of organisms, as in "the adaptive radiation of mammals." adaptive strategies: A mode of coping with competition or environmental conditions on an evolutionary time scale.
Teaching about Earth's history is a challenge for all teachers.
Time factors of millions and billions of years is difficult even for adults to comprehend.
The clearest example is found below, a petroglyph which depicts the 1,006 AD supernova that resulted in the Crab Nebula.
origins of astrology as an attempt to understand, predict and influence events The earliest written records (i.e.