The arrival of humans in America led to the extinction of almost 130 faunal species. A British Broadcasting Corporation report indicates that early immigrants brought with them deadly viruses that led to a host of diseases in the animal population of the continent. "They brought along-with them parasites, which they knew nothing about,' says Ross MacPhee, a paleontologist. MacPhee hopes that deoxyribonucleic acid (DNA) analysis of recently excavated 26,000-year-old woolly mammoth specimens, will support his theory.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/enter-humans-exit-animals
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/animal-diseases
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/life-science
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmental-science
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/extinct-species