Lost Species' Return Could Trigger Negative Consequences

Many scientists say the Earth is in the midst of its sixth mass extinction. The soaring rate of species loss is blamed largely on us, with climate change, pollution and human encroachment on animal habitat playing roles. In response, some conservationists say introducing new plants and animals or reintroducing old ones will slow the trend. Now, a new study in the journal Cell Biology warns that such "rewilding efforts" may harm the environment in unintended ways....

© La Voix de l'Amérique - mardi 8 mars 2016