A quarter of the world's mammals are threatened with extinction, an international survey showed on Monday, and the destruction of habitats and hunting are the major causes.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/one-four-mammals-risks-extinction-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/planet-ark-australia
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mammals
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/spain
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/extinct-species