In early 1900 the populations of Mexican Wolf began the decline of their populations. Their drastic decline was due to indiscriminate hunting to which were subjected by farmers. By mid-l900 Arizona, New Mexico and Texas will be free of wolves. In the early 1980s created a joint interest by governments...
In order to face the biodiversity crisis experienced by the world it is required to create new alternatives for conservation and sustainable use of resources. Avoid species extinction is one of the most important challenge for the humanity during the new century. To preserve those species which are vanishing or...