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greentumble.com/10-reasons-why-species-become-endangered

The extinction rate of species today is more than 1,000 times higher than the natural extinction rate. Explore the 10 reasons why species become endangered.

www.thoughtco.com/how-species-become-endangered-1181928

Today, more and more animal and plant species are on the verge of extinction because of a variety of major factors that cause a species to become endangered, and as you might expect, humans play a role in quite a few of them.In fact, the biggest threat to endangered animals is human encroachment on their habitats.

www.factmonster.com/.../why-do-animals-become-endangered

Humans are largely responsible when animals become extinct, endangered or threatened. Here are some reasons why animals become endangered: Destruction of Habitat. Humans destroy precious habitat--the natural environment of a living thing--when they fill swamps and marshes, dam rivers and cut down trees to build homes, roads and other developments.

www.wonderopolis.org/.../how-does-a-species-become-endangered

A "threatened" species is any species that is likely to become an endangered species within the foreseeable future. The International Union for Conservation of Nature (IUCN) keeps track of endangered species around the world. As of 2006, the IUCN estimates that up to 40 percent of all organisms are endangered.

www.nationalgeographic.org/encyclopedia/endangered-species

An endangered species is a type of organism that is threatened by extinction. Species become endangered for two main reasons: loss of habitat and loss of genetic variation. Genetic variation is the diversity found within a species. It’s why human beings may have blond, red, brown, or black hair ...

www.wisegeek.com/why-do-animals-become-endangered.htm

Species can become endangered due to a combination of several of these factors. A species that's fighting both habitat loss and pollution, like the baiji, for example, may die off more quickly than either alone would cause. The combination of factors also makes it much more difficult to save animals from extinction.

www.epa.gov/endangered-species/learn-more-about-threatened...

Endangered species are those plants and animals that have become so rare they are in danger of becoming extinct. Threatened species are plants and animals that are likely to become endangered within the foreseeable future throughout all or a significant portion of its range.

www.mammalsociety.org/uploads/Why species become endangered_0.pdf

remember that every time a species becomes extinct, the quality of our lives and that of our descendants is diminished. THE CHARACTERISTICS OF THREATENED/ENDANGERED SPECIES One way to answer the question of why species become threatened or endangered is to ask another ques-tion: Do threatened, endangered, or extinct species pos-

sciencing.com/causes-animals-becoming-endangered-6564385.html

Increasingly the activities of man have caused a large numbers of animals to become endangered. Small populations are extremely sensitive to the factors causing endangerment, whether one relies on the ordinary sense of the word or the endangered species definition embodied in federal law.

sciencing.com/pandas-endangered-animals-5176027.html

Pandas are endangered for several reasons, the biggest of which is habitat loss. Because of their specialized diets, pandas cannot adapt to other environments. Pandas also have difficulty reproducing, and some wild pandas are killed by poachers for their pelts.