Human activities have caused extinction in 40 years, over
50% of wild animals on the planet, says the report "Living Planet"
prepared by the NGO World Wide Fund for Nature WWF, which sounds the alarm
about overexploited resources of the Earth quotes Tuesday.
The various forms of life are both matrix ecosystem that
permit life to exist on Earth and barometer that shows the effects they have on
the planet said Director General of WWF, Marco Lambertini.
