https://www.nationalgeographic.org/encyclopedia/endangered-species/

Mar 17, 2011 ... An endangered species is a type of organism that is threatened by extinction. Species become endangered for two main reasons: loss of ...

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

Feb 15, 2018 ... Endangered species are those plants and animals that have become so rare they are in danger of becoming extinct. Threatened species are ...

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

Today, many of us are aware that certain animals, such as rhinos and polar bears , are endangered species. What many might not realize, though, is that the ...

https://www.factmonster.com/math-science/biology/plants-animals/why-do-animals-become-endangered

Here are some reasons why animals become endangered: ... Oil spills, acid rain and water pollution have been devastating for many species of fish and birds.

https://www.biologicaldiversity.org/programs/biodiversity/elements_of_biodiversity/extinction_crisis/

No group of animals has a higher rate of endangerment than amphibians. Scientists estimate that a third or more of all the roughly 6,300 known species of ...

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

Jul 27, 2018 ... The extinction rate of species today is more than 1000 times higher than the natural extinction rate. Explore the 10 reasons why species ...

https://www.amnh.org/explore/ology/earth/ask-a-scientist-about-our-environment/why-are-so-many-animals-endangered

There are many reasons that animals and plants can become endangered or die ... Over millions of years, these gradual changes can impact individual species ...

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

Sep 26, 2018 ... There are a number of factors that cause species to become endangered, but human destruction of natural habits is the leading cause.

https://www.britannica.com/story/what-makes-a-species-endangered

Over 7,000 species around the world are considered endangered. ... So how exactly does a species become endangered, and who makes the call?

https://www.nwf.org/Educational-Resources/Wildlife-Guide/Understanding-Conservation/Endangered-Species

Under the ESA, the federal government has the responsibility to protect endangered species (species that are likely to become extinct throughout all or a large ...