Even for a conservation biologist numbed to bad news about nature, the biennial Living Planet report from the World Wildlife Fund (WWF) is a stark reminder of our failure to arrest the loss of biodiversity—the variety of living things and the ecosystems they live in. Even for a conservation biologist numbed to bad news about nature, the biennial Living Planet report from the World Wildlife Fund (WWF) is a stark reminder of our failure to arrest the loss of biodiversity—the variety of living things and the ecosystems they live in. Plants & Animals Ecology Phys.org – latest science and technology news stories