Vertebrate

Understanding the Brain Sometimes you have to tell yourself, “I am a shark” and attack the day - Coach Campaign Understanding the brain is something that many people might find quite complex, especially if you are comparing it to a sea animal. However, they are not as complex as we think, for example, sharks and humans share the same characteristics and structures of the brain. Both species have a cerebrum located superiorly to the body along…

is called a mysticete whale, and it is an ancestor of the baleen whale. The length of the whale ran about 25 feet. The scientists are excited for this find due to the fact of how well preserved the whale is. They have found, along with the entire vertebrate, parts of the skull, most of the jaw, arm bones, and shoulder blades. The majority of the time, they are only able to find bits and pieces of the whale. With this new information, they are able to better study how whales evolved, and reveal…

Way back when, humanity had such a strong past. Nothing appeared. Time was time. Nothing is nothing. The four eras that made history. Precambrian, Paleozoic, Mesozoic, Cenozoic. Historians and Scientists, did research for years and years. What happened during the Precambrian Era, nobody had a clue. Until humans researched the resources left behind. Back in the Precambrian Era . Earth was born. 4.6 million years ago, not even that many.! Stars and the planets were too! Rocks and much…

caenagnathid oviraptorosaur. These findings demonstrate an evolutionary process of the beak for the first time. The team wanted to further support their hypothesis so they performed a comparative and statistical analysis of thousands of modern vertebrates to understand the shared characteristics. They found that beaked animals tended to be born from eggs laid on land and from embryos that had structure on the tipoff their snouts. Josef Stiegler linked the team’s analysis to what they found in…

The three-spined stickleback (Gasterosteus aculeatus) is a species of fish that exhibits a wide range of morphological variation within its subspecies, which typically fit into two categories, anadromous (spawn in freshwater, migrate from saltwater) and freshwater varieties. Saltwater marine varieties of the fish typically have two dorsal spines, along with a pelvic spine. These spines, as studies have shown, act as a defense mechanism against soft-mouthed predators, by increasing the diameter…

consists of the brain and the spinal cord, but the Peripheral nervous system consists of motor and sensory neurons that connect the brain and the spinal cord to the rest of the body such as sensory organs, muscles, and body organs. Although all vertebrates possess a Central nervous system and Peripheral nervous system, there are big differences between the nervous…

The Family Tetraodontidae and its Toxic Defense Mechanism Tetraodontidae, a family commonly known as the pufferfish, uses unique defense mechanisms in the wild to protect themselves against predators. Pufferfish diet consists mainly of invertebrates, so they are not viewed as dangerous or predatory animals in their ecosystems. These defense mechanisms are necessary to the survival of the Tetraodontidae family. The Tetraodontidae family’s defense mechanisms of inflation and use of the deadly…

Ponds, Course S323 Biomedical Science, Subject SLE254 Genetic Introduction Sexual differentiation is one of the first biological processes to occur during the development of a foetus. There are a variety of methods for sex determination amongst vertebrates including analysis of primary and secondary differentiations. Primary differentiation refers to the presence of gonads, while secondary looks at the phenotypical differences that occur in dimorphic species. Although, not all species are…

animal maintain its shape. Exoskeletons are on the outside of bodies of arthropods. They vary in thickness, but are all thin and flexible at the joints to allow the animal to move freely. Endoskeletons are found inside the bodies of humans and other vertebrates. They encase and provide support for internal organs while being under the skin.…

Various studies were done to determine whether the abiotic environmental factors or the biotic factors such as competition was behind these evolutionary traits. It has been suggested that pterygoids incorporated gigantism to compete with large, swift vertebrate predators in a coevolutionary arms race ( Lamsdell et al, 2010). Romer in 1933 first suggested this hypothesis but was criticized because other paleontologists found his explanation over…