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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.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. Loss of Habitat A loss of habitat can happen naturally. Dinosaurs, for instance, lost their habitat about 65 million years ago.The hot, dry climate of the Cretaceous period changed very quickly, most likely because of an ...

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

Explore the 10 reasons why species become endangered. ... There are many historical accounts about how humans have over hunted and over harvested species, leading to their endangerment, and often, extinction. One extinct species, the Passenger Pigeon, is a classic example of how humans over hunted a species, leading to the extinction of the ...

animalstime.com/save-endangered-species

How to Save Endangered Species | Causes and Preventions While animals are admired for their unique disposition and significant ecological role, there are many who are endangered of becoming extinct. Some animals just naturally die off as their environment changes, but humans are the cause of so many changes taking place in the natural world.

en.wikipedia.org/wiki/Endangered_species

Using species data from the Database on the Economics and Management of Endangered Species (DEMES) database and the period that the Endangered Species Act (ESA) has been in existence, 1970 to 1997, a table was created that suggests a positive relationship between human activity and species endangerment.

gorillafacts.org/why-are-gorillas-endangered

Why Are Gorillas Endangered – Gorilla Endangered Species Gorillas are categorized as endangered species by International Union For Conservation of Nature (IUCN). We have gathered complete information on Why Are Gorillas Endangered and stated down all the reasons for each of its species due which their population is declining.

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

Why Do Animals Become Endangered? Humans are largely responsible when animals become extinct, endangered or threatened. ... acid rain and water pollution have been devastating for many species of fish and birds. Hunting and Fishing. Many animals are over-hunted because their meat, fur and other parts are very valuable.

animalstime.com/why-are-animals-endangered-top-11-causes-of...

Why are animals endangered? This is one of the questions that are often asked by students who tries figure out the root cause of the wave of extinction that is sweeping the earth. This article is an attempt to explain you some of the most probable causes about endangered species facing biologists worldwide.

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.

faunalytics.org/endangered

Currently, more than 3,000 species of animals are considered endangered. In the United States, the Endangered Species Act was passed in 1973 to help with conservation efforts, but there are now three times as many endangered species as there were just ten years ago.