Animal extinction 1 welcome presentation done by 2 animal extinction 3 a species becomes extinct when the last existing member of that species dies extinction therefore becomes a certainty when there are no surviving individuals that are able to reproduce and crea. Many extinct species—from the passenger pigeon to the woolly mammoth—might now be reclassified as bodily, but not genetically, extinct they're dead, but their dna is recoverable from museum. The extinct category includes the dodo, the mammoth and more recently, the baiji river dolphin (the species was declared extinct in 2006) and the west-african black rhinoceros (declared extinct in 2006.
The baiji is a river dolphin that inhabits the yangtze, and due to pollution from china's rapid industrialization, it's been declared functionally extinct - there may be a few individuals left, but they're so few and far between that there's no coming back. The leading causes of animal extinction biology essay introduction: every organism and species has the right to live in a harmonious and safe world, hence nobody has authority to take away others' lives. The tragic recognition of the extinction of the yangtze river dolphin or baiji in 2007 became a major news story and sent shockwaves around the world it made a romantic story, for the baiji was a unique and beautiful creature that features in many chinese legends and folk tales.
Extinct means that the last individual of the species dies based on doris lin tasmanian tiger, golden toad, caribbean monk seal and baiji river dolphin are the example of extinct animals extinction of animals is a very serious issue in our mother earth there are various types of causes of extinct. This article is a part of wikiproject extinction, an attempt at creating a standardized, informative, comprehensive and easy-to-use resource on extinct animals, extinct plants and extinction in general. Endangered species are those considered to be at risk of extinction explore endangered species photos, videos and facts including why species are endangered and what is being done to help.
A hundred years ago on monday, a once-mighty species became extinct at the cincinnati zoo, a passenger pigeon named martha died at the age of 29 people coming to the zoo to see the last. Baiji white dolphin, also called the chinese river dolphin, can only be found in the yangtze river in china these mammals could grow to eight feet long and weigh up to a quarter of a ton. I need you to write a research paper relate to baiji a freshwater dolphin found only in china 5 paragraphs long, around 1000 wordsi need you to analyze the species, population, habitat, why and how they become endangered species, what should we do to protect them, and what lesson i have learned from protecting this species.
A range of anthropogenic extinction drivers (eg boat collisions, dam construction), which also threaten freshwater cetaceans in other river systems (eg smith et al 2000), have been implicated in the baiji's precipitous decline. Pg 34 witness to extinction: how we failed to save the yangtze river dolphin for a near blind creature such as the baiji that relies heavily on the sense of sound for prey and survival, this pure white noise would be deadly indeed. We whether an interventional course of action would result question the decision to ignore this option in light of in a prolongation of time to extinction for this species evidence on likely chances of success of capture, translo- classical k-selected species, and especially populations cation, and ex situ propagation of the baiji. We will write a custom essay sample on extinction of giant panda specifically for you for only $1638 $139/page order now search the extinction of baiji. The baiji, lipotes vexillifer, was a species found only in yangtze river, in china the freshwater dolphin was also known as 'chinese river dolphin', 'whitefin dolphin' and 'yangtze dolphin.
The baiji is a graceful animal with a very long, narrow, and slightly upturned beak it can be easily identified by the rounded melon, longitudinally oval blowhole, very small eyes, low triangular dorsal fin, and broad rounded flippers (. Tragically, the baiji's extinction is entirely due to human impacts such as the ongoing degradation of its habitat, heavy ship traffic, pollution, human land uses as well as unsustainable fisheries and bycatch it is the first large mammal to be driven to extinction by people in recent times. Baiji extinction essay the baiji , lipotes vexillifer, was a species found only in yangtze river, in china the freshwater dolphin was also known as 'chinese river dolphin', 'whitefin dolphin' and 'yangtze dolphin.
The baiji's extinction in 2006 made mexico's tiny endemic porpoise, the vaquita (phocoena sinus), the world's most endangered marine mammal unlike the yangtze river dolphin, however, the vaquita may yet be saved. We hope the extinction of the baiji, or yangtze river dolphin, around 2006 will serve as an alarm to prevent the extinction of this small and unique dolphin population off taiwan get the latest on our work for biodiversity and learn how to help in our free weekly e-newsletter. Natural causes of extinction occur at a slower rate than human causes of extinction, which lead to a lower extinction rate examples of natural causes of extinction would be climatic heating and cooling, changes in the sea levels, asteroids, acid rain or the spread of disease. All extinct species go through a process that leads them to extinction endangered species are on the brink of extinction caused by natural causes and humanity the numbers of these species have increased yearly due to different reasons, and it is because of these reasons they become endangered.