Once on the brink of extinction, the Iberian lynx has been given a chance to thrive again — thanks, in part, to the unyielding dedication of biologist Rodrigo Serra. Leading an ambitious conservation ...

Carrying one tadpole at a time, this frog father climbs high into the canopy to find the safest pools for his offspring. - [Narrator] A milk frog with his tadpoles. (water gurgling) His loud calls are ...