What Are The Reasons For Animals Becoming Endangered

What Are Endangered and Threatened Species?

A century ago, a bird called the passenger pigeon lived in N America. At that place were so many rider pigeons that people often saw great flocks of them flight overhead containing thousands, fifty-fifty millions, of birds. Today, there is non a unmarried one left. What happened?

The passenger pigeon became extinct. All living passenger pigeons disappeared from the earth entirely. The passenger pigeon became extinct for two reasons. Kickoff, the forests where it lived were cut downwardly to brand manner for farms and cities. 2nd, many pigeons were shot for sport and considering they were good to swallow. At that time, there were no hunting laws to protect endangered species like there are now.

In that location are over 1,300 endangered or threatened species in the United States today. Endangered species are those plants and animals that accept go so rare they are in danger of becoming extinct. Threatened species are plants and animals that are likely to go endangered within the foreseeable hereafter throughout all or a pregnant portion of its range.

How Does Extinction Happen?

Species disappear because of changes to the earth that are caused either by nature or by the actions of people. Sometimes a natural event, like a volcano erupting, can impale an entire species. Other times, extinction volition happen slowly as nature changes our world. For instance, after the Ice Ages, when the glaciers melted and the world became warmer, many species died because they could not live in a warmer climate. Newer species that could survive in a warmer environment took their places.

People tin also cause the extinction of plants and animals. The main reason that many species are endangered or threatened today is because people take

changed the homes or habitats upon which these species depend. A habitat includes not only the other plants and animals in an area, simply all of the things needed for the species' survival -- from sunlight and wind to food and shelter. The United States has many habitats, from ocean beaches to mount tops. Every species requires a certain habitat in order to live. A cactus, for case, needs the sunny, dry desert in order to grow. A polar bear, on the other hand, would not live in a desert, because information technology could non find enough food and h2o.

Pollution tin can also touch on wildlife and contribute to extinction. The Nashville crayfish is endangered mainly because the creek where it lives has been polluted by people.

Pesticides and other chemicals tin toxicant plants and animals if they are not used correctly. The bald hawkeye is one bird that was harmed by pesticides. In the by, a pesticide called DDT was used by many farmers. Rains washed the pesticide into the lakes and streams where it poisoned fish. After eating the poisoned fish, the eagles would lay eggs with very thin shells. These eggs were usually crushed before they could hatch. Today, people are non allowed to employ DDT, and this has contributed to the bald eagle being removed from the endangered and threatened species lists needed for the species' survival -- from sunlight and wind to food and shelter.

The United States has many habitats, from ocean beaches to mountain tops. Every species requires a certain habitat in society to live. A cactus, for example, needs the sunny, dry desert in guild to grow. A polar deport, on the other hand, would non live in a desert, because it could not find enough food and water.

People tin too endanger plants and animals by moving, or introducing, new species into areas where they do not naturally live. Some of these species do and then well in their new habitat that they endanger those species already living there, chosen the native species. These introduced species are chosen invasive species. For case, when some fish are introduced into a lake or stream, they may prey upon, or eat the food of the native fish. The native species may then take to observe a new source of food or a new home, or face up becoming endangered or extinct.

Another way that people impairment animals and plants is past taking them from the wild. Some people might catch an insect like the Mission blueish butterfly for a butterfly collection. Others might capture a wild animal for a pet, or pick a flower because it'southward pretty. In addition, some people illegally chase animals for nutrient, skins, or fur. In the by, lots of American crocodiles were killed so that their skins could be fabricated into shoes and other clothing. This crocodile is now an endangered species.

Why Protect Endangered and Threatened Species?

Can you imagine walking in the wood without hearing birds singing, or picture what a field would be similar without wildflowers blooming? Our plants and wildlife

make the world a more interesting and beautiful identify. More chiefly, all living species, including people, depend on other species for survival. For instance, if a fish such every bit the shortnose sturgeon becomes extinct, all of the species that rely on it will too suffer and may get threatened or endangered.

Nosotros all depend upon plants and wildlife. From studying them, nosotros have learned new ways of growing food, making clothing, and building houses. Scientists accept discovered how to use sure plants and animals as medicine. If we neglect to protect threatened or endangered species, we will never know how they might have improved our lives.

Endangered and threatened species need our help. Government agencies, such as the U.S. Environmental Protection Agency, the U.S. Department of

Agronomics, the U.S. Fish and Wild fauna Service, NOAA'south National Marine Fisheries Service, and the National Park Service, along with state fish and wildlife agencies and private groups are making data available so people tin can ameliorate protect endangered and threatened species and their habitats. You lot can contact these agencies for information and join the claiming in helping to protect endangered and threatened species, and all wildlife, from extinction.

Source: https://www.epa.gov/endangered-species/learn-more-about-threatened-and-endangered-species

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