As the Endangered Species Act celebrated its 40th anniversary at the end of 2013, its administrative agency, the US Fish and Wildlife Service, was mired in controversy. At issue was a proposal to remove the gray wolf (Canis lupus) from the List of Endangered and Threatened Wildlife and add the Mexican gray wolf (Canis lupus baileyi).
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...