The Endangered Species Act (ESA) was passed into law on the 28th December 1973. It was enforced by the United States of America to protect critically jeopardized species from extinction‚ from a consequence of development and economic growth and the conservation of the environment they depend on. There are two main federal agencies that are administered to the act: the United States Fish and Wildlife Service (FWS) and the National Oceanic and Atmospheric Administration (NOAA). A species is considered
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Aquatic Invasive Species Two thirds of the forty freshwater fish extinctions are known to have been caused by invasive species. The extinctions could have been caused by any one of the four thousand three hundred known invasive species in the United States. In Minnesota‚ the land of ten thousand lakes‚ thirty-five percent of all recreational waters are known to hold at least one invasive species (Invasive species of aquatic plants and wild animals in Minnesota: Annual report). The common carp‚ zebra
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There are many different types of invasive species around the world‚ that vary in all shapes and sizes and things. What is an invasive species.? An invasive species is a plant‚ fungus‚ or animal species that is not native to a specific location (an introduced species)‚ and which has a tendency to spread to a degree believed to cause damage to the environment‚ human economy or human health. The Burmese Python The Burmese Python is a large reptile (snake) that can grow up to 20 ft in length and
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of new species. Since the development of modern genetics in the 1940s‚ evolution has been defined more specifically as a change in the frequency of alleles in a population from one generation to the next. Darwin ’s theory of evolution describes the descent of all living organisms from a common ancestor. Natural Selection is the principal mechanism that causes evolution. In common parlance the word "evolution" is often used as a shorthand for both the modern theory that all extant species share a
Free Evolution Natural selection Charles Darwin
Questions: What are the current condition of endangered species in Canada? What are the major factors that cause species endangerment? What are the actions the Canadian government had been taken to save them? Introduction Canada is one of the biggest places on earth with extensive wilderness protected areas that are providing home for more than 70‚000 wildlife species. Among the rest‚ 488 species are categorized by COSEWIC (Committee on the Status of Endangered Wildlife in Canada) as extinct
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Zimbabwe and Angola. My knowledge of the black rhino has increased dramatically due to my interest in endangered species. I became interested in endangered species when an advocate from the World Wildlife Foundation came to my school in 8th grade. Ever since‚ I have kept up with their website and read articles on what this incredible organization is doing for the advancement of endangered species. The St. Louis zoo is home to three black rhinos named Ruka‚ Kati Rain‚ and Ajabu. Ruka was born on January
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Carnivorous Plants In a world where plants are at the bottom of the food-chain‚ some individual plant species have evolved ways to reverse the order we expect to find in nature. These insectivorous plants‚ as they are sometimes called‚ are the predators ‚ rather than the passive prey. Adaptations such as odiferous lures and trapping mechanisms have made it possible for these photosynthesizers to capture‚ chemically break-down and digest insect prey (and in some cases even small animals.) There
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carnivorous fish; it will feed on any smaller fish that comes across with it. In Lake Lanao‚ the white goby is said to have an impact on one of the cyprinid species. Positive Impact: Although the white goby eat the cyprinids it does not have a large impact on the cyprinids compared to eleotrid which feeds on three endemic cyprinid species. Negative Impact: The white goby swims in fresh water. In Lake Mainit the fish was found in their fresh water container and this was the farm’s main water stock
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The oceans have risen and fallen throughout Earth’s history‚ following the planet’s natural temperature cycle‚ and now we are in a new warming phase‚ where the oceans are rising again after thousands of years of stability. As long as we continue to power our global economy by burning fossil fuels that pollute the air with heat-trapping gases‚ we are contributing to the increase in global temperatures. Consequently‚ the ice sheets in places like Antarctica and Greenland are melting‚ thus causing the
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Species Extinction - Modern Species Paper Endangered Species Act joins a couple of unmistakable environmental laws in the US. It was set apart into law by Past President Nixon‚ whose key target was to keep various endangered species from being ended using whatever strategies imperative. Since it is set to guarantee certain animals that are nearing end on our planet‚ it will make people who harm or execute them a criminal. While the law has been outstandingly viable in the rebuilding of a couple
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