An undated handout image released by biologist S.D. Biju on 21 January 2016 shows a tadpole of a frog named Frankixalus jerdonii, belonging to a newly found genus of frogs. An unusual class of tree frogs that feeds on eggs laid by their mother as tadpoles has been rediscovered more than a century after they were thought to have died, scientists said. (Photo by S.D. Biju/EPA)
