INTRODUCTION
Evolution is a process of living things change slowly in a very long time, so it evolved into a new species more complete body structure. According to the theory of evolution, living now in contrast to living in the past. The ancestors of creatures alive today may experience changes in form and structure. In addition, may experience changes in both the structure and genetics in a very long time, so the shape was totally different from the original and finally generate different types of species present. So the plants and animals living there now was not the first time here on earth, but it comes from living in the past.
There evolutions have two types, which are the progressive and regressive evolution. Progressive evolution means
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CONCLUSION
Turtles are one of the forms of life that are very suitable for assessed the evidence for evolution, this is not caused by the skin very easily taken care of but because there are many turtle fossil record. Simply there is no evidence to support that the turtle evolution of the ancestors even though it has been more than a century of fossil exploration area and identifies thousands of fossils.
Turtles are reptiles that are very different from others because of its uniqueness that can be practically useless as a guide to distinguish between potential ancestors, and the origin of the turtle remains one of the unanswered questions of evolutionary biology. There were possibilities that the options for the turtles were almost the entire range of turtle reptile, living and extinct.
The original turtle has long been, and continues to be, a major evolutionary enigma. The oldest turtle clearly identified the turtle. Since turtles appear suddenly in the fossil record, the latest data is not changed with the creation of the event is followed by diversification and
What is evolution? Evolution in modern terms is fairly easy to understand. Evolution is the theory that life on earth began with a single celled organism that lived more that 3.5 billion years ago that slowly evolved into
About 20 million years after Pappochelys, we began to see a more similar looking ancestor to the turtle, the Odontochelys semitestacea. O.semitestacea was roaming the planet in the Late Triassic era in modern day China. Odontochelys differed a lot from modern turtles. Modern day turtles possess a horned like beak without any teeth present in their mouth, while Odontochelys fossils showed that teeth were found embedded in their upper and lower jaws. One of the most interesting features of turtles, both modern and prehistoric, are their shells that formed an armored protective casing over its body. Odontochelys only possessed the plastron (the bottom portion of a turtle's armor) and it had yet to develop a solid carapace. Instead of a carapace,
There are numerous counts of evidence showing the processes of evolution and how species ultimately evolved over millions of years. One of the most compelling hypotheses behind evolution was presented by Charles Darwin with his study of the Galapagos Islands. His study showing the various different birds and their different evolutions they went through to be able to survive the changes of weather and relocation. The birds he studied had to change in order to survive, or as he simply puts it: “Survival of the Fittest”. Evolution is the changing of past organisms to diversify and have the ability to fit better in their environment and survive. Diving into the dinosaur cladogram, studies have shown that ancient dinosaurs, over hundreds of millions of years ago, evolved into our modern day birds, and not lizards as many suppose. It became apparent that there would not be enough food for a 9 ton dinosaur to consume on a daily basis forever. So evolution occurred and dinosaurs evolved to become more efficient so they could survive more effectively in their
There are four main groups of reptiles, known as Crocodilians, Squamates, Tuataras, and Turtles. Crocodilians consists of large reptiles which includes alligators, crocodiles, gharials, and caimans. Squamates are lizards, snakes, and worm-lizards. A worm-lizard is a subterranean burrowing reptile that resembles an earthworm, a legless lizard. Tuataras are a group of reptiles that are lizard-like in appearance but are different from squamates because their skull isn’t jointed. Turtles are the most ancient reptiles alive today. They have changed very little since they first showed up 220 million years ago. The first turtle appeared 220 million years ago.(Laura Klappenbach)
Sea turtles are becoming more and more endangered as time goes on and is something that really needs to be changed. There are seven species of sea turtle and they are all either endangered or critically endangered. Millions of sea turtles used to inhabit the sea now only a fraction of them are still around. Humans are partly the cause of this because we hunt them for food and profit. It is unbelievable that people can kill such beautiful creatures just for their personal benefit. Humans are not the only reason sea turtles are facing extinction, but we are the main reason. Humans really should not be part of the problem in the first place.
Mary Anning’s contribution to the development of the understanding of how reptiles contributed to evolution and to the understanding of fossils as extinct life forms was important.
The fossil of Tiktaalik confirmed a major prediction of paleontology in that it showed characteristics of both aquatic animals, such as fish, and land animals, such as reptiles and amphibians. While it had fins and scales, it also had a flexible neck, a flat head, and complex bone structure in its fins that correspond with the structure of the legs of terrestrial animals. Thus, it demonstrates the evolutionary transition between aquatic and terrestrial life.
In the science of paleontology, the history of life is studied. Paleontologists study fossils to learn the past ecologies, evolution, and the origins of humans. In order to understand the processes that have led to both the origination and destruction of organisms since life began, paleontologists incorporate both scientific knowledge and studies. Fossil findings are critically important for confirming predictions of evolution theory. Of the many discoveries that are made yearly to add depth to the understanding of evolution, an example is a recent discovery of a creature they named Tiktaalik. The Tiktaalik was uncovered to be a transitional animal between shallow-water fishes and limbed animals. The creature supports the idea that it emerged from both mammals and reptiles, suggesting that the two are related. These findings support prediction of evolution, contradicting the belief that God
Those changes of the species lead Darwin to think that the long necked tortoise is the same branch from the low short necked, smooth shell tortoise because of the location of the island and the food they eat. Having Darwin think of this beginning of the evolution theory has caused Darwin to reach the conclusion that all tortoise are the same, except some tortoise would fail to survive in one area due to population or the amount of food available. This would cause the tortoise to move to a different location/environment. Doing this so, means the tortoise would evolve slowly over a long period of time into the tortoise growing a longer neck to reach the foods in the area, or developing a stronger shell for the moist part of the islands. Having this observation and conclusion, Darwin Galileo and Darwin used the tools they had on hand to find evidence to support each of their theories, while scientists today have advanced technology.
Turtles and Tortoises have existed millions of years since prehistoric days yet research conducted on their socialization and behavior appears scarce, despite their longevity. As research by Davis has summarized, “Turtles are little studied with respect to learning, cognition and social behavior in spite of being phylogenetically a central group” (Davis, Karen Pg. 12). Those owning these intriguing reptiles are interested in the culture known as Hobbyists of Chelonian or Terrapins. The discourse community culture relies upon accessible research information, and tends to gather a majority of their knowledge via online blogs or forums. We know so little about these fascinating creatures; possibly due to the fact they are perceived as slow and
There are many factors which influence evolution. Some examples are availability of food and the ability to adapt. How did evolution lead to the Saddle-backed shell tortoise being the only one on the Galápagos Islands? Two scientists propose their theories on evolution.
Turtles have puzzled evolutionary biologist immensely. Their morphology isn’t similar to any other living species, specifically their shell is quite perplexing as the shell makeup is unique to other armored tetrapods, like rhinos and armadillos. In fact, the dorsal part of the shell is transformed into ribs and vertebrae and their shoulder blades have inside-out topology against the rip cage. This is unique in comparison to other armored tetrapods because they tend to have independent vertebrae and rib cage to their armor and have regular topology of the shoulder blades. In addition, turtles lack a temporal fenestra which classes them in the anapsid group. This is abnormal, because generally turtles are labeled as reptiles and generally reptiles have two fenestra which classes them into the diapsid group. These characteristics are part of the reason as to why a phylogenetic tree is complicated to create. This primary paper ultimately sets out to determine where the turtle, specifically the extant species the green sea turtle and the Chinese
Sea turtles are one of only seven species that survived the extinction of the dinosaurs which makes this line of creatures over 65 million years old (Cave, ¶2). These ancient animals are very special and have not changed since this time making them very sustainable to live in a changing environment, but only to a certain extent (Cave, ¶12). Sea turtles are an ancient species that are very important to marine life; because they are endangered, it is important to take steps to conserve these creatures.
Evolution refers to change over time as species modifies and separate to produce several offspring species.
Tortoises that live in in the desert have been around for Bantu 1 million years (Garcia). When they live with someone the turtles can longer than