April 2017 - Hunting is a major threat to wildlife particularly in tropical regions. A systematic large-scale estimate of hunting-induced loss of animal species was lacking so far. A study published in Science on April 14 fills this gap. Researchers synthesised 176 studies to quantify hunting-induced declines of mammal and bird populations across the tropics of Central and South America, Africa and Asia. The study was led by Ana Benítez-López.