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Evolution Site - Teaching About Evolution Despite the best efforts of biology educators, misconceptions persist about the evolution. Pop science nonsense has led many people to think that biologists don't believe in evolution. This site, which is a complement to the PBS program that provides teachers with resources which support evolution education while avoiding the types of misconceptions which hinder it. It's organized in the "bread crumb" format to make navigation and orientation easier. Definitions It is difficult to teach evolution well. Non-scientists often misunderstand the subject, and some scientists even use a definition that confuses it. This is especially true when it comes to discussions about the nature of the word. It is therefore important to define the terms that are used in evolutionary biology. The website for the PBS show, Understanding Evolution, does this in a clear and helpful manner. The site is a companion to the show which first aired in 2001, but it is also an independent resource. The material is presented in a nested manner which aids navigation and orientation. The site defines terms like common ancestor, the gradual process, and adaptation. These terms help frame the nature of evolution as well as its relation to other scientific concepts. The site gives a comprehensive overview of the ways the concept of evolution has been tested. This information can be used to dispel misconceptions that have been engendered by creationists. click the next internet site is also possible to find a glossary of terms that are used in evolutionary biology. These terms include: Adaptation is the process of changing heritable traits to be more suited to the environment. This is due to natural selection, which happens when organisms that have more adaptable traits are more likely survive and reproduce than those with less adapted characteristics. Common ancestor (also known as common ancestor) The most recent ancestor shared by two or more species. The common ancestor can be identified by analyzing the DNA of the species. Deoxyribonucleic Acid: A huge biological molecular that contains the information required for cell replication. The information is stored in nucleotide sequences which are strung into long chains known as chromosomes. Mutations are the reason behind the creation of new genetic information inside cells. Coevolution: A relationship between two species in which evolutionary changes in one species are affected by changes in evolutionary processes in the other. Related Homepag can be seen in the interaction of predator and prey, or parasites and hosts. Origins Species (groups of individuals that are able to interbreed) change through an array of natural changes in the characteristics of their offspring. The changes can be caused by a variety of factors such as natural selection, genetic drift and mixing of genes. The evolution of new species can take thousands of years. Environmental conditions, like climate change or competition for food and habitat, can slow or accelerate the process. The Evolution site tracks the development of various groups of animals and plants over time with a focus on the key changes that took place in the evolution of each group's history. It also explores the human evolutionary roots, a topic that is crucial for students to know. When Darwin wrote the Origin in 1859, only a handful of antediluvian human fossils had been found. One of them was the infamous skullcap and associated bones found in 1856 at the Little Feldhofer Grotto in Germany which is now believed to be an early Homo neanderthalensis. While the skullcap wasn't published until 1858, which was a year before the first edition of the Origin was published, it's very unlikely that Darwin had heard or seen of it. While the site is focused on biology, it offers a lot of information on geology and paleontology. The website has numerous features that are especially impressive, including an overview of the way that climate and geological conditions have changed over time. It also has a map showing the distribution of fossil groups. The site is a companion for the PBS television series, but it could be used as a resource for teachers and students. The site is extremely well-organized and offers clear links between the introduction information in Understanding Evolution (developed with support from the National Science Foundation) and the more specific elements of the museum Web site. These hyperlinks facilitate the move from the cartoon-like style of the Understanding Evolution pages to the more sophisticated world of research science. Particularly there are hyperlinks to John Endler's experiments with Guppies that demonstrate the importance of ecology in evolutionary theory. Diversity The evolution of life on Earth has resulted in a variety of plants, animals, and insects. Paleobiology is the study of these creatures within their geological context, has many advantages over modern observational or experimental methods of studying evolutionary phenomena. In addition to examining processes and events that occur regularly or over a lengthy period of time, paleobiology can be used to study the relative abundance of different species of organisms and their distribution across the geological time. The site is divided into several optional pathways to understanding evolution that include "Evolution 101," which takes the viewer on a liner path through the nature of science and the evidence supporting the theory of evolution. The path also reveals the most common misconceptions about evolution, as well as the history of evolutionary thought. Each of the other sections of the Evolution site is equally constructed, with materials that can be used to support a range of different pedagogical levels and curriculum levels. The site has a range of interactive and multimedia resources, including video clips, animations and virtual laboratories in addition to general textual content. The content is organized in a nested, bread crumb-like fashion that helps with navigation and orientation within the vast web site. The page "Coral Reef Connections", for example, gives a brief overview of coral relationships and interactions with other organisms, and then zooms in on one clam, which is able to communicate with its neighbors and react to changes in the conditions of the water at the reef level. This page, as well as the other multidisciplinary multimedia and interactive pages, provides an excellent introduction to many topics in evolutionary biology. The material also provides an overview of the importance of natural selection as well as the concept of phylogenetic analysis which is an important tool in understanding evolutionary change. Evolutionary Theory Evolution is an underlying thread that is found throughout all branches of biology. A wide range of resources can help teachers teach about evolution across all life sciences. One resource, which is the companion to PBS's television show Understanding Evolution is an excellent example of an Web site that provides depth and wide range of educational resources. The site features a wide range of interactive learning modules. It also features a "bread crumb structure" that helps students move away from the cartoon style that is used in Understanding Evolution and onto elements on this site that are more closely connected to the fields of research science. An animation that introduces students to the concept of genetics, which links to a page highlighting John Endler's artificial-selection experiments with guppies on native ponds in Trinidad. Another resource that is worth mentioning is the Evolution Library on this Web site, which contains an extensive multimedia library of items related to evolution. The content is organized in the form of curriculum-based pathways that are in line with the learning goals set forth in the standards for biology. It contains seven videos specifically designed for classroom use. These can be streamed or purchased as DVDs. A variety of crucial questions remain in the midst of evolutionary biology, including the factors that trigger evolution and how fast it happens. This is especially true for humans' evolution where it was a challenge to reconcile religious beliefs that humans have a distinct place in the creation and a soul with the notion that our physical traits originated from the apes. There are also a number of other ways in which evolution can take place and natural selection being the most well-known theory. However scientists also study different kinds of evolution like mutation, genetic drift and sexual selection, among others. While many fields of scientific inquiry conflict with the literal interpretations of religious texts evolutionary biology has been the subject of particularly controversial debate and resistance from religious fundamentalists. While certain religions have managed to reconcile their beliefs with the notions of evolution, others haven't.
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