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

Mar 17, 2011 ... Species become endangered for two main reasons: loss of habitat and ... The Red List defines the severity and specific causes of a species' ...

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

Jul 27, 2018 ... What causes animals to become endangered? Causes of species endangerment are many, but conservation biologists recognize that multiple ...

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 ... Species disappear because of changes to the earth that are caused either by ...

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

Humans are largely responsible when animals become extinct, endangered or ... acid rain and water pollution have been devastating for many species of fish ...

https://enviroliteracy.org/ecosystems/classifying-species/threatened-endangered-species/

In the past, most extinctions were due to natural causes. In fact, extinction is a naturally occurring phenomenon that occurs at a rate of roughly one to five 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.nwf.org/Educational-Resources/Wildlife-Guide/Understanding-Conservation/Endangered-Species

An endangered species is an animal or plant that's considered at risk of .... conversion of habitat to human uses and fragmentation of habitat caused by such  ...

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

Aug 6, 2018 ... Although natural forces can destroy or strain an animal population, increasingly the activities of man have caused a large numbers of animals ...

http://idahoptv.org/sciencetrek/topics/endangered_species/facts.cfm

These groupings come from the 1973 Endangered Species Act. ... Development by humans can also impact a species, by causing changes in their physical ...

http://wwf.panda.org/our_work/wildlife/problems/habitat_loss_degradation/

Conservation of threatened animals and endangered species. ... Forest loss and degradation is mostly caused by the expansion of agricultural land, intensive ...