The Evolution Of Tetra Pods

Over the last several years, evolution has been playing an increasingly important role in determining how various species are evolving. This is because ecology will have an impact on how quickly a particular organism is able to adapt (with: the unique challenges for a particular environment). To determine the effect that this is having requires carefully examining different species over the course of many years. This will be accomplished by comparing these changes on Darwin and Wallace Islands. Once this occurs, is when specific insights will be provided that are highlighting the underlying challenges affecting the development of organisms. This is the point that these transformations will be evident among the various life forms. (Fasolo, 2011, pp. 53 68)

Phylum: Chordata, an organism who developed a notched, a nervous system with that contain gill cleft with the vertebrates.

1. Neil Shubin, author of Your Inner Fish, and his colleagues travel to Ellesmere Island to look for and study the shift from fish living in water to creatures living on land (4). Fossils from 360 million years ago include amphibians and reptiles. Fossils 385 million years old, only fish are found. Because of this, Shubin and his colleagues look at the time in the middle of this, 375 million years ago (10). In 2004, they give it another try, after failed previous tries (21). What gradually emerges from the rocks they searched for in the bottom of the quarry is an “intermediate” right between fish and land animals, Tiktaalik, “large freshwater fish” (22-25).

In the ‘NOVA LABS; The Evolution Lab,’ we found that creating a phylogenetic tree can show how different species are related to each other. A simple body part, like a vertebrate, can put species into a certain group. This means that history can prove that species do change over time because one branch represents a single species that has had a speciation. When a speciation occurs, over time, more branches appear with more species on each, which creates a tree that has more biodiversity. In ‘The Stickleback Fish - A Story of Modern Evolution’ activity, it states, “The Three-Spined Stickleback is a model organism for studies in evolution.” This means actions, such as breeding Stickleback, can help scientists see how the fish and other organisms evolve because the Stickleback fish has such a short life-span, that they can breed and get results, fast. In brief, history can prove that species do change over time because breeding can show how the Stickleback population has occurred and how different traits can be expressed in the future generations. In the ‘Comparative Anatomy’ activity, we found that when looking at two different species, you can see how they are related because both species can possess similar traits and forms. When comparing different species, you can see how different and similar two species’ bodily structures are. When looking at the bodily structures, you could see how the species has evolved over time and how some body parts stay the same. In short, history can prove that species do change over time because creating phylogenetic trees, breeding species, and comparing body parts can help scientist see who the species evolved from and how these species can continue to

There are many differences present between species in the animal kingdom. There are also many variations of breeds, mutations within the same species, behavior, etc. Neil Shubin’s “Your Inner Fish” focuses on the similarities rather than differences of behaviors, variation in animal psychology, and morphology because of habitat. This book emphasizes three types of evidence. The first are the similarities between body parts of living creatures to compare common ancestry. The second are the indications from microbiology to also compare common ancestry. Finally, the details provided of the “missing link” between amphibians and fish.

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

When defining Synapsid, this term is often misused to only refer to the only extinct non-mammalian forms, when in actuality this group includes all the amniotes that descended from a common ancestor who had a synapsid type of temporal fenestration (Pough, Janis and Heiser, 448). A term when defining the Synapsid lineage is “mammal-like reptile” this term

During David Attenborough’s journey through the world, he discovered evidence of many different ancient animal forms in fossils and living creatures. These ancient organisms thrived approximately 3 and a half billion years ago, in conditions much harsher and inclement than we have today. Back in that time, the land was populated with large volcanoes, and the land was barren and hostile. In the ocean, however, life began and thrived.

With there being more than 50,000 species of vertebrates alone it is essential for all biology majors to have a working knowledge of the tree of life. The two perspectives for teaching zoology are the Linnean taxonomical and the Phylogenetic clade-based perspective. The Linnean taxonomical perspective is a rank-based hierarchy while the phylogenetic clade-based perspective groups species by focusing a common ancestor and its descendants. In regards to teaching zoology there is more value in using the phylogenetic clade-based perspective rather than the Linnean perspective because it allows students to organize the details of biodiversity with a more rational system.

One of the most important shifts in evolutionary biology in the past 50 years is an increased recognition of sluggish evolution and failures to adapt, which seem paradoxical in view of abundant genetic variation and many instances of rapid local adapta- tion. I review hypotheses of evolutionary constraint (or restraint), and suggest that although constraints on individual characters or character complexes may often reside in the structure or paucity of genetic variation, organism-wide stasis, as described by paleontologists, might better be explained by a hypothesis of ephemeral divergence, according to which the spatial or temporal divergence of populations is often short-lived because of interbreeding with nondivergent populations. Among

In this research paper, I’m going to be discussing the evolution of animals and how things have changed to make them more complex throughout history. I’m going to discuss what types of phyla there are and how their body systems work.

Dr Daniel Pincheira-Donoso and colleagues at University of Lincoln, UK is investigating adaptive radiation. In 2015, he found that the uplift of the Andes led to the diversification of lizards (Pincheira-Donoso et al.

Additionally, the other components of evolution are pinned on the concept that there are very many species that share fundamental traits. Some of the shared traits

Fossils are considered to be evolutionary markers that records a lineages of creatures across time — providing a distinct way to compare different species. When Darwin set forth on a journey to the Galapagos Islands, he discovered many aspects of evolution. During his expedition, he discovered the fossils of creatures which closely resembled the modern armadillos. At that time, Darwin did not possess any tools or resources to predict the phylogenetic lineages and the evolutionary history of the armadillos. However, using modern day science and techniques like DNA and protein sequencing, it is now possible to better understand the relationships between different organisms. Furthermore, by observing the early developmental (embryonic) stages of a large mammal’s life cycles it is possible to indicate the relationship of the mammals with other mammals6. The combination of these methods may lead us to determine the phylogenetic position of armadillos Dasypodidae and other related organisms, such as anteaters and sloths.