http://www.brighthub.com/science/medical.aspxenhttp://www.brighthub.com/science/medical/articles/7196.aspxSun, 04 Oct 2009 22:04:56 GMTb133e95a-c263-4882-8f2a-b24547eff78e:7196ginkgo100This article is the first in a two-part series on shark phylogeny. It describes interesting facts about the evolution of sharks. Sharks are the living descendants of an ancient lineage of animals, known from fossils to have existed at least since the Upper Silurian period, about 420 million years ago. Though superficially they may resemble simple f...http://www.brighthub.com/science/medical/articles/8061.aspxFri, 06 Mar 2009 15:50:19 GMTb133e95a-c263-4882-8f2a-b24547eff78e:8061ginkgo100Fungi and plants may look similar, but they are not closely related. In fact, fungi are more closely related to animals than to plants. Animals, plants, and fungi are the three major multicellular groups of the domain Eukaryota. Eukaryotes are organisms with complex cells which have features such as mitochondria and nuclei, and only Domain Eukaryot...http://www.brighthub.com/science/medical/articles/9082.aspxWed, 01 Oct 2008 03:37:57 GMTb133e95a-c263-4882-8f2a-b24547eff78e:9082ginkgo100How is phylogeny related to genealogy? Both study family relationships. Read about concepts relating to phylogeny. What is Phylogeny? Phylogeny is the evolutionary history of an organism. The great 19th century naturalist Ernst Haeckel coined the word phylogeny . It comes from Greek words roughly meaning "birth of races." Phylogen...http://www.brighthub.com/science/medical/articles/8071.aspxTue, 23 Sep 2008 18:30:19 GMTb133e95a-c263-4882-8f2a-b24547eff78e:8071ginkgo100Mikko's Phylogeny Archive is a project aimed at collecting phylogeny trees to represent all living organisms. Though it is a private, non-scholarly project, this remarkable project is still a respected and valuable source for phylogeny information. Finnish paleontology student Mikko Haaramo began Mikko's Phylogeny Archive ( http://www.helsinki....http://www.brighthub.com/science/medical/articles/8072.aspxTue, 23 Sep 2008 02:46:55 GMTb133e95a-c263-4882-8f2a-b24547eff78e:8072ginkgo100The flightless birds known as ratites are oddballs of evolution. Research using phylogenomic analysis and other methods has so far failed to result in a clear picture of their phylogeny. Ratites are large, flightless birds found on different continents throughout the Southern Hemisphere. Their ranks include the ostriches of Africa, the kiwis and ex...http://www.brighthub.com/science/medical/articles/8060.aspxTue, 23 Sep 2008 00:54:35 GMTb133e95a-c263-4882-8f2a-b24547eff78e:8060ginkgo100The phrase "ontogeny recapitulates phylogeny" still has some value in modern zoology, even though its original version has been thoroughly rejected. Part Three of this series explains its importance to cladistics. The modern theory of evolution differs enormously from Lamarckian evolution. For example, traits are now known to be inherited s...http://www.brighthub.com/science/medical/articles/7274.aspxMon, 15 Sep 2008 16:43:42 GMTb133e95a-c263-4882-8f2a-b24547eff78e:7274ginkgo100This article is the second in a two-part series on shark phylogeny. It describes the evolutionary relationships between different groups of sharks and includes a shark phylogeny tree in text form. Introduction to Shark Phylogeny Sharks and rays are known as elasmobranchs (subclass Elasmobranchii), and they share a common ancestor separate from that...http://www.brighthub.com/science/medical/articles/4831.aspxThu, 11 Sep 2008 17:42:48 GMTb133e95a-c263-4882-8f2a-b24547eff78e:4831ginkgo100Do any scientists believe that humans evolved from apes? The answer may surprise you. In the creation vs. evolution debate, you will not find a single scientist who believes in ape to human evolution. This fact may seem startling to many observers who are curious about human origins. The truth is that both sides agree on this point -- but they ...http://www.brighthub.com/science/medical/articles/3147.aspxThu, 11 Sep 2008 17:38:24 GMTb133e95a-c263-4882-8f2a-b24547eff78e:3147ginkgo100Naturalists have been classifying living things since long before the theory of evolution was published. Today, though, phylogeny — the evolutionary history of living things — is the main basis of biological classification. Traditional biological classification system: Before the idea of phylogeny An organism's evolutionary history ...http://www.brighthub.com/science/medical/articles/4522.aspxFri, 15 Aug 2008 07:00:46 GMTb133e95a-c263-4882-8f2a-b24547eff78e:4522ginkgo100In the creation vs. evolution debate, this is a big question. To understand the answer, it is important first to understand what the term "theory" means in science. Evolutionary biologists say that evolution is both a fact and a theory. What is a theory? In the creation vs. evolution debate, proponents of Biblical Creationism often asse...http://www.brighthub.com/science/medical/articles/3574.aspxThu, 31 Jul 2008 06:26:25 GMTb133e95a-c263-4882-8f2a-b24547eff78e:3574ejlloydCladistics is a somewhat obscure field dealing with evolution and classification of species which has some surprising applications in modern medicine. Cladistics is the study and classification of species based on their evolutionary ancestry. Unlike other classification systems, it focuses on the evolutionary relationships between species, rather t...http://www.brighthub.com/science/medical/articles/3370.aspxTue, 29 Jul 2008 17:58:15 GMTb133e95a-c263-4882-8f2a-b24547eff78e:3370raj.webdezinerCladistics is a way scientists classify organisms. It differs from other forms of taxonomies because it is based on the evolutionary connections between species. Cladistics is a classification of species that is based on evolution and ancestry. It is different from other systems because it puts the focus on evolution instead of finding similarities...http://www.brighthub.com/science/medical/articles/3134.aspxFri, 25 Jul 2008 14:23:46 GMTb133e95a-c263-4882-8f2a-b24547eff78e:3134ginkgo100Cladistic analysis allows biologists to trace evolutionary relationships among organisms by analyzing their characteristics. Sequence analysis made it possible to apply bioinformatics techniques to cladistics and has led to extraordinary discoveries about the history of life on earth. All about Cladistics and Cladograms Cladistics is the field of s...