Recovery From Human-Caused <br />Animal Extinction Will <br />Take Millions of Years The International Union for <br />the Conservation of Nature <br />makes a stark prediction <br />for the next 100 years. During that time span, it says that <br />99.9% of critically endangered <br />species and 67% of endangered <br />species will be lost. After that, nature will need <br />3-5 million years to return <br />to the earth's current biodiversity. This "best-case scenario" <br />was derived by researchers <br />from Aarhus University in Denmark. The reason it will take<br />millions of years for <br />the earth to recover Because species that <br />are more "evolutionarily <br />distinct" are at a greater <br />risk for extinction, the findings of <br />the study could help <br />conservationists decide where <br />to focus their preservation efforts.
