Maverick Wagner Evolution 2/20/15 Evolution of the Carcharodon carcharias (Great White Shark) Did you know that sharks appeared in the fossil record about 450 million years ago (Natural History Museum, N.D.)? Since we know that sharks have existed for 450 million years we know that they have had to survive many mass extinctions. In these mass extinctions many of the predators that preyed on sharks were killed off. These mass extinctions that the sharks were able to survive gave them
Darwin’s theory of evolution states that “by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment, compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation”. The grouping of organisms in the classification table is not just the result of similarities, colours, ecological functions, etc, it also covers and expresses information about our understanding of
Amongst the many living creatures of the aquatic world lurks an evolutionary advanced species called Selachimorpha, commonly known as Sharks. Sharks are the most dominantly feared creatures of the marine world. Although they are perceived as a threat to humans, these animals keep marine organisms in check. Sharks have developed a unique physical structure that enables them to efficiently hunt prey while simultaneously playing a vital role in balancing the ecosystem. These apex predators fall under
the most feared and fiercest predator in the sea. In this speech I will be discussing the evolution, physiology, ecological niche and propose a postulate for the future health and survival of the Great White Shark. The Great White is scientifically known as the Carcharodon carcharias and is considered a carnivorous killing machine. This fish has been around for hundreds of millions of years and its evolution has enabled it to develop extraordinary abilities to find and catch prey as well as reproducing
A Literal Shark-Hugger Rob Stewart embarked on a mission to expose the clandestine nature of the illegal shark finning industry. He did so through his photography, videography and writing. Stewart made multiple documentaries including Sharkwater and Revolution. Stewart also wrote Sharkwater and Save the Humans. Stewart’s actions of exposing the shark finning industry did not go unnoticed by the public or individuals profiting from the illegal shark finning industry. Stewart was arrested in Costa
subject matter that emerges in the course of this poem deals with our commonplace ideas approximately the system of evolution and our own area in it. The come across with this big, nearly primeval beast at the outlet of the poem acts as a catalyst to consider the relationship between this creature and people, and the comparative paths such differing species took. On one hand, basking sharks, have remained especially unchanged for hundreds of thousands of years, even as on the alternative, people have
They have an anus to expel waste. Obtain O2 & eliminate CO2 They have 5 to 7 pairs of gills (leading to gill slits in rays and sharks and covered by operculum in chimaeras). Some have spiracles behind each eye (Skin surface openings leading to respiratory system). They have gills covered by an operculum that increases respiratory efficiency by creating negative pressure that both
Macallan Miller Mr. Stratz 2016 Biological Evolution Biological Evolution Biological evolution, what is it? To start off, the subject can be a challenging topic, but the basic principles are rather quite simple. This paper will go over both simple and more complex ideas such as Darwin 's theory of evolution, natural selection, specific topics about development of embryos and genetic variation between plants and animals. Finally this paper will touch on gene therapy and, genetic engineering.
These changes take place over millions of years and the species that survive, do so because throughout their evolution they have perfected certain strategies that have enabled them to develop more successfully in the environment they inhabit. One such case of this successful development is the great hammerhead shark. The great hammerhead shark, also known as Sphyrna mokarran, is a pelagic shark and is found world wide in
after Darwin published his work, On The Origin of Species, in which he presented his theory of evolution.” (Trudeau, 1). This is seen in so many of the scientific debates that have taken place. One instance where a debate relating to this topic occurred was between Dr. Jay Wile and Dr. Robert Martin. They were on entirely opposing sides; Dr. Wile was on the creation side whereas Dr. Martin was on the evolution side. Dr. Jay Wile and Dr. Robert Martin each stated their views boldly and respectfully.