Scientists battling to fight a lethal amphibian disease on two islands in Caribbean have witnessed what is believed to be one of the fastest range-wide declines ever recorded for any animal – pushing the critically endangered mountain chicken frog towards the verge of extinction. Watch this episode of Wild Science to find out how conservation scientists from ZSL and their partners in the Mountain Chicken Recovery Programme have been battling to pull this critically endangered amphibian back from the brink of extinction.