forcing unprecedented numbers of species toward extinction. However‚ extinction is a natural biological process that has been a part of species’ evolution since the beginning of time. Fossil records have shown that‚ even before humans were a part of the world’s biota‚ natural factors such as overspecialization ‚ competition‚ sudden climatic change‚ or catastrophic events like volcanic eruptions and earthquakes have driven species to endangerment and extinction. Some people may ask "why bother with
Premium Plant Species Biodiversity
Extinction of Dinosaurs Ryan Humphries Biology 6th Period Two-hundred and thirty million years ago the first dinosaur-like creature roamed the earth. Within five million years it could be considered a dinosaur. They were soon at the top of the food chain. They populated every continent. Then 65 million years ago they vanished. The most powerful creatures ever to live on earth had become extinct. Dinosaurs were not the only victims of this "mass extinction." There were many other species
Premium Dinosaur Extinction event Cretaceous
Bengal White Tigers Scientists from Peking University‚ Beijing in May 2013 discovered that a change in single amino acid (A477V) in one pigmentation relate gene (SLC45A2) is the cause of white fur or sepia brown stripes in some tigers. The scientists studied 16 captive white tigers from three different parents to come up with the conclusion. As per the scientists‚ two types of melanin namely pheomelanin and eumelanin are used for identifying the color of fur‚ eye and stripes of the tiger. In case
Premium Tiger
The Tiger The Tiger is often described as a particularly dangerous‚ sly‚ and invincible predator. The Tiger is the largest of the cat family. They have powerful bodies‚ large paws‚ and very sharp claws. The head of the Tiger is rounded and has a convex profile. The ears are black with white in the middle. The Tiger’s eyes are a yellowish-orange color‚ but at night they almost look green. Coloration of the Tiger is reddish yellow or rust- brown on the upper side‚ and a whitish under side
Premium Tiger Lion
pterosaurs‚ ammonites‚ and many families of brachiopods and sea sponges. Also‚ many shark species as well as most vegetation did not survive(“Dinosaur Extinction”). What could have possibly killed off the dominant animal group of the time? The answer to this question is still unclear but there are many hypotheses that attempt to explain this extinction event. To find out exactly how this happened‚ evidence must be gathered not only from fossils
Premium Dinosaur Earth Extinction event
The Extinction of Baiji The Baiji‚ also known as the Chinese River Dolphin‚ are part of the family Plantanistiade‚ the river dolphin family. They had exsited in the Yangtze River in China for thousand of years. Nevertheless‚ the Baiji was recently declared extinct. The baiji’s demise can be attributed to over fishing‚ its lethal environment and the Great Leap Forward in China. Excessive and illegal fishing was a great threat to the baiji’s way of life. Electric fishing and the fishing method
Premium Three Gorges Dam Yangtze River China
GMO’s inside a lab and work to expel the uncontrolled production of GMOs‚ because of the fact that the genetically modified organisms can interact with the environment and cause the transfer of harmful genes which can lead to the elimination and extinction of all natural organisms. It may not be a well known fact but GMOs have greatly increased our quality of life. GMOs have mainly helped our agricultural industries by increasing the size and the quality
Free Genetically modified organism Genetically modified food Genetic engineering
BIODIVERSITY AND EXTINCTION Biodiversity is determined by the variety of species extant in a specific ecosystem; this includes both animals and plants. Biodiversity is what gives an ecosystem a continuing and symbiotic relationship between all the organic and inorganic elements; maintaining the proper balance of different gases such as nitrogen‚ oxygen‚ hydrogen‚ carbon dioxide and many other elements‚ which differ in composition depending on the type of environment (such as subterranean‚ aquatic
Premium Biodiversity Endangered species Species
Extinction and Evolution Ecology helps us understand the importance of mass extinction in evolution‚ and it also helps us understand some of the causes of extinction. Ecological niche is one of the most important concepts to understand. An animal or plant lives in a certain place is active at a particular times‚ and eats certain things; all these factors describe its ecological niche. Our environment is parted into millions of ecological niches‚ each that represents a probable home for life
Free Evolution Extinction Ecology
Customers are not willing to part with luxury despite decrease in cost. Tiger airways target the people who are travelling on limited budgets‚ primarily younger adults‚ students and low wagers. According to the website of Budget carrier Tiger Airways‚ they have promised the lowest airfares: At least 40 per cent less than the average lowest fare in Singapore. In exchange for the lower cost‚ the travelers have to sacrifice on comfortable seats and leg space. People are willing to give away greater
Premium Airline Low-cost carrier Singapore Airlines