More than two thirds of the world's wildlife including mammals, birds, fish, reptiles and other vertebrate species, could be extinct if action isn't taken, the organisation has revealed.
Between 1970 and 2012, the average decline in population was 58 percent, meaning wildlife across the globe is vanishing at a rate of two percent a year, according to the report.
“For the first time since the demise of the dinosaurs 65 million years ago, we face a global mass extinction of wildlife," Mike Barrett, director of science and policy at WWF's UK branch said.
“We ignore the decline of other species at our peril – for they are the barometer that reveals our impact on the world that sustains us.
“Humanity’s misuse of natural resources is threatening habitats, pushing irreplaceable species to the brink and threatening the stability of our climate.”
Sharks and rays are also in danger of over-fishing with a third of species under threat.
"Governments (need) to take action to halt the slow death of the planet because it isn't just affecting wild species it's affecting us too. This is a threat to our future as a species, what we're doing to the planet," WWF conservation scientist Martin Taylor told CNN.
"We only have one planet if we screw it up then we're gone."
The report was compiled by monitoring trends in 14,152 populations of 3,706 different species of vertebrates, including fish, mammals and birds.