"There was a 52 percent decrease in wildlife populations between 1970 and 2010. Human population more than doubled during the period." World Wildlife Fund
Mihai Caragiu - Professor of Mathematics, Ohio Northern University
Mihai Caragiu - Professor of Mathematics, Ohio Northern University
"There was a 52 percent decrease in wildlife populations between 1970 and 2010. Human population more than doubled during the period." World Wildlife Fund
