Tetrapod

Behavioural Ecology Comparison between the roaring rate of the red deer in Richmond Park and in wildlife R ed deer males use a deep guttural vocalization (roar) to attract females. Previous studies have correlated high roaring rates to higher reproductive success. In this study, we investigated the influence of living in a limited area such as Richmond Park (RP), with direct human contact in roaring rate of red deer. The roaring rate of three males living in RP were calculated and compared to…

Throughout the course of the evolutionary history of species there are many morphological and phenotypical aspects of each species that either are common and shared, or a species diverges and new aspects can then be observed. One morphological feature that is observed in most fauna is the development of limbs; however, one species that is known to lack limb development is the snake species so that paper published by Kvon et al, investigates and tries to subside the debate over whether the…

Creationism, Intelligent Design, and Evolution, three words that seem to be thrown around a good bit, but which of them is “right”? Well, if you define “right” as being the most factual, then Evolution is, by far, the most :right” of these ideas. There is a mountain of evidence for Evolutionary Theory, such as genetic similarities between different species, following change over time in the fossil record, and even seeing Evolution in action. It is because of this evidence that many individuals…

1. This research paper is a report on the evolution of the taxonomic group of dogs. This information will be displayed in a variety of ways and will explain the different aspects of dogs evolutionary process, as well as their biodiversity in their environment. To begin, dogs are in the phylum Chordata, and the class Mammalia. Within the phylum group Chordata is all humans and animals with a backbone. There are four main distinguishing features of the animals in the Chordata phylum: A dorsal,…

Biogeography It shows how the past and present geographical distribution of organisms played a role in their evolution.Also, how species are distributed in accordance to the genetic relationships they share with other organisms. Marsupials and Placental Mammals Marsupials animals are almost exclusively found in Australia, while Placental mammals are very rare there. There are fossils of marsupials in North America, and South America. 30 million years ago South America and Australia…

Natural selection Natural selection is when an organism is born with a mutation that is advantageous to its species survival and reproduction. There are four components in Darwin’s theory of natural selection, the first is variation within the community of organisms as they will all exhibit different behavioural traits and have a different appearance though some characteristics stay the same like the number of eyes in vertebrates. The second is inheritance which is when a child possesses traits…

Despite the difference, there are four limbed-vertebrates which have the same basic pattern of bones. Vertebrates are animals of a large group characterized by the possession of a backbone or spinal column. Vertebrates with four limbs are called tetrapods. Generally, all limbs do the same work to achieve one purpose: support the body and move it from place to place. Some animals have limbs that enhance their ability to crawl, walk, run, jump, and climb. Others have limbs adapted for swimming or…

Diagram of the forelimb of a variety of tetrapods showing how the primate has retained the primitive pentadactyly limb (3 girdle bones; 1 upper limb bone; 2 lower limb bones; carpals/tarsals; meta-carpals/tarsals; phalanges) whereas various other mammalian orders have lost various bones (taken from Strickberger [Strickberger, 1990]). As you can see from figure 3 the primates have retained a limb bone structure that is very similar to that of the primitive tetrapod, whereas the other mammals…

A tale of modern whales: Divergence and radiation of Neoceti during the Oligocene period likely driven by environmental changes in Southern Oceans ZOO*4910 Integrative Vertebrate Biology Group 04 Candace Flynn (cflynn@mail.uoguelph.ca), Melissa Westaway, Katherine Znotinas, and Daniela Banda Marin 2 November 2014 Abstract Reasons for divergence within the animal kingdom is heavily debated across many orders. Macroevolution in Cetacea has been attributed to a variety of…