Evolution can be found among almost every type of creature, if not all living creatures. Indeed, there are many articles and research being done about evolution in sea organisms. Seeing as evolution is based on abilities to obtain food and shelter, the end results usually ended up with an animal or organism evolving to better obtain either of these. For example, the head of a dwarf seahorse was found to have evolved to better catch their prey, the copepod (Ornes, 2013). The shape of the head causes the water in front of the nose to be still as to be able to avoid being detected (Ornes, 2013). With sea creatures evolution also may cause other changes like the loss of a stomach (Milius, 2013). The puffer fish does not “need” the acids to digest its meal and instead used the stomach free area to be able to “puff” up and seem unappetizing (Milius, 2013). Not only is there changes in animals, but also in coral reefs. Instead of having to rely on the green algae to get its food, cold water coral has evolved to become able to get energy from the small creatures that it would catch. It has evolved that way because it is very dark where the coral reefs are found in cold water areas (Earth Sky, 2014). Evolution doesn't just happen within land organisms.
Evolution in different species show up more and more often as scientists find different ways to find it. Evolution can be found using different methods; from analyzing the bones of the species to studying the species firsthand. Research is being done and articles written about evolution and with every article we understand each species more. For example, there recently was a skull from the new species Panthera blytheae found. At first the DNA of the Pantherin...
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...om a group of now extinct wolves. These wolves were thought to have been domesticated by european hunter-gatherers about 180,000 years ago. This prediction was made based off of how mitochondrial DNA of the 10 ancient “wolf like” animals and 8 “dog like” animals and comparing them. The new genetic data can not prove this. Only an analysis using the nuclei can prove it infedently but the data is persuasive. Not only were the very close but there is also the fact that the wolves are know to take advantage of left behind carcesses. This fact supports the theory of domestication because the wolves would have followed the early humans giving many opportunities for domestication. It also would have broken wolves territorial instincts following them. If this is indeed true, then dogs that derived from the wolves evolved behaviorally by no longer being territorial.
My evidence for evolutions is how hippos have adapted to dominate by gaining helpful traits and evolving new ones. You’re probably thinking that hippos are a very dangerous and hurtful animal, which is true, but they are very important in their ecosystem and have evolved from many various animals to be the wonderful yet dangerous beasts they are today.
Our old pals, even going back to Canis lupus, the gray wolf (the original ancestor of most modern dogs), have human-like qualities. Wolves are clever hunters and gatherers, especially the gray wolf. No speci...
Long standing arguments against the theory of natural selection stem from the occurrence of incipient structures and complex traits in organisms despite the seemingly stochastic nature of mutations. Many complex adaptations observed in nature today are thought to have arisen from less complex ones with simpler functions, therefore these characters are thought to have been “pre-adapted.” In order to go from a simple to a complex structures there must have been a transitional phase, where the two structures function simultaneously or where the new function is assumed without interfering with the old function. These structures are termed incipient or incomplete, and given what we know to be true of natural selection and the theory of evolution it becomes hard to reconcile the idea that natural selection continued to favor these structures despite the lack of selective value. Incipient structures are thought to be neither sufficiently large enough not elaborate enough to perform an adaptive function and thus it also becomes difficult to understand how larger complex characters arise. A discussion of morphological and developmental genetics explains that these structures have been performing useful functions since their simple origins, therefore being selectively favored while at the same time evolving to become large enough to accumulate new more complex functions. Modification of pre-existing genes and regulatory circuits in early development has been extensively studied in metazoans, Hox genes and the development of complex structures such as eyes, limbs and appendages. Phenotypic variation is therefore generated via the modification of existing genes, regulatory processes and developmental processes and this variation is acted o...
Evolution can be defined differently within each sub-field of anthropology. However, biological anthropology is defined as: the sub-field of anthropology that studies humans as a biological species (Park, 2008). With that said, a biological anthropologist would study evolution using things such as: genetics, fossil records, bio-diversity, primatology, or human ecology. In particular (albeit rare) cases, some anthropologists have been known to study monkeys and apes because their genes are more closely related to humans than that of any other species. According to fossil records, it has been shown that there were a bewildering number of hominid species over the last 6-7 million years (Willoughby, 2005). However, Homo sapiens is the sole hominid on the planet, and has been for about the last 25,000 years (Tattersall, 2000). This type of fossil research is beneficial to the study of evolution since it has provided tangible evidence that evolution has happened, is currently...
Throughout the world there are many different countries that contain diverse cultures, religions, and life styles. There is however certain aspects within these countries and cultures that acts as a common ground between one another. One dominant aspect is the existence of dogs within these cultures. Dogs are common throughout the world, either as a domestic pet, a protector on a farm, or an assistant for hunting; amongst others. Regardless of the reason for having a dog most people have either owned one for themselves or has known somebody who has owned one at some point in their life. Despite the relative normality of having a dog in your life in one way or another, the reasons for dogs coming into existence is not common knowledge among most people. Throughout a great portion of mankind’s history dogs have been an essential part of life. The truth is dogs were actually created in part by man. It was evolution from wolves in the form of natural and artificial selection that brought dogs into existence (Harris 3). This is the most modern and widely excepted theory at this time, however this was not always the case considering the theory of evolution in of itself is relatively new in our society. After evolution as a theory was accepted there were several other variations on the theory such as, the evolution being from jackals opposed to wolves, and artificial selection being the only form of evolution to have taken place. According to Jarret A Lobell and Eric A Powell of Archaeology magazine “The idea that dogs were domesticated from jackals was long ago discarded in favor of the notion that dogs descend from the gray wolf (2)”. As for the theory that artificial selection ...
On the other hand, the “leftover hypothesis” proposes that the domestication of wolves came about as a by-product of city development. When human settled down in villages, waste dumps would have inevitably appeared. This provided a new ecological niche for the wolves: scavengers in human waste. Tamer wolves that were not afraid of humans would be at an advantage in getting food from the dump. Animals that could take advantage of this resource would not need to hunt in the wild and thus have a better chance at survival. Over generations, natural selections would favor tameness and facilitate its spread through the scavenger wolf population. This then gave rise to dogs.
Evolution is change.S Evolution is a certain species changing to become better adapted to their surroundings and in the end this modification causes this species to become a new breed altogether. There was no scientist that understood how evolution works until Charles Darwin and Alfred Russel Wallace (See figure 1) explained it to them. Lots of scientists had realised that plants and animals change with time, as palaeontologists could track the evolution of life in the fossil record. The scientists figured out that life began in sea, then the fish evolved, and the fish developed in to amphibians on land, which then became reptiles, and then mammals etc. But none of them could figure out how this happened. Charles Darwin
The first type of evidence that I believe supports evolution is the homologous structures. This could also be known as the genes of species. This can be proved through different fossils being compared to modern species. Through the process of looking at the genes, finding sequences of genes show that evolution can happen. From finding the sequence of genes, this shows that the species will have common ancestry but may be different species or have different characteristics. This idea can prove evolution.
First, fossils of organisms and their ancestors differ in order to fit the needs to survive, which explains evolution by showing that their skeletons change over a long or short period of time; this is similar to the definition provided by Dictionary.com. Two primary examples of fossil evidence would be shown through the whale skeletons throughout the centuries and ancient lizard fossil. The skeletons of whales have changed over time, from fossils showing that whales once had four limbs and were capable of walking on land. The modern whale skeleton has bones on the lower back, which are limb remnants of its prehistoric ancestor. The whale was not the only animal that lost its limbs; according to National Geographic, a 95 million year old fossil of a lizard with miniscule legs may be the ancient ancestor of the snake. The vestigial limbs show that the lizard was closer to evolving into the snake. In short, the changes of fossils which belong to the snakes and its predecessors show variations that allows one to believe that evolution had occurred.
Evolution is the theory that over time a species will slowly develop new characteristics and eventually become an entirely new species. Based off of fossils that have been found, studied, and tested, scientists have been able to create what they call a fossil record. In the fossil record there is evidence of minor changes in creatures and those changes taking millions of years, overtime these changes amounted to a point where the creatures were completely different, this proves that evolution is true. The changes started with a creature called a chordate which was essentially a very primitive fish. Over time some of these fish located to shallow areas of water, to adapt to the shallow water the fish developed very primitive versions of arms,
The transition to the diet of the original dog as a result of beginning the relationship with humans could be attributed to the changes identified between the modern dog and original dog (wolf). The canids remain recovered in yet cave, in Belgium where Upper Paleolithic artifacts were discovered along with other object are considered to be domesticated dogs. The domestication of dog could have been driven by human need for help with herding, hunting, and early warning while the dog benefited from companionship and reliable source of food
Thoeries of Evolution Evolution is the process by which living organisms originated on earth and have changed their forms to adapt to the changing environment. The earliest known fossil organisms are the single-celled forms resembling modern bacteria; they date from about 3.4 billion years ago. Evolution has resulted in successive radiations of new types of organisms, many of which have become extinct, but some of which have developed into the present fauna and flora of the world (Wilson 17). Evolution has been studied for nearly two centuries. One of the earliest evolutionists was Jean Baptiste de Lamarck, who argued that the patterns of resemblance found in various creatures arose through evolutionary modifications of a common lineage.
Evolution is defined as the change of hereditary characteristics of populations over generations (Caroll, 2009). The environment is continually changing therefore organisms have to change in order to stand the changes in environment so they can survive and reproduce (Caroll, 2009). Regular change in genetic material of organisms over generations can lead to the development of new species that are more adapted to the environment (Caroll, 2009). It is said that failure to evolve may lead to extinction of a species (Caroll, 2009).
Without evolution, and the constant ever changing environment, the complexity of living organisms would not be as it is. Evolution is defined as a process that results in heritable changes in a population spread over many generations (8).Scientists believe in the theory of evolution. This belief is based on scientific evidence that corroborates the theory of evolution. In Figure 1 the pictures of the skulls depict the sequence of the evolution of Homo-sapiens. As the figure shows, man has evolved from our common ancestor that is shared by homo-sapiens. The change of diet of homo-sapiens over time has thought to contribute to the change in jaw structure and overall skull shape.
Throughout the various phyla discussed evolutionary advancements are relevant. Starting from the basic, simplistic life forms of a sponge, up to the intelligence of an octopus and advance organ systems of Annelida the changes have only improved. Some species changed and evolved because as populations grow, they spread out farther and different conditions begin to affect their life. Why some species haven’t changed is because their body plan and system works for the environment they inhabit. Evolution has helped animals spread out all over the world and adapt to various conditions, seen in the habitats Aschelminthes can prosper in.