News Animals Some harlequin frogs — presumed extinct — have been rediscovered Understanding how the animals have survived is key to their continued existence Ecuador’s iconic Jambato harlequin frog (one seen here) was thought to have gone extinct in the late 1980s. In 2016, it became one of many members of its genus to be rediscovered since 2000. K. Jaynes Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Freda Kreier November 9, 2022 at 7:00 am Across Central and South America, one group of bejeweled frogs is making a comeback.