Amphibians

The gigantic Ozark hellbender salamander is in trouble in the wild, but one zoo — and a hard-working team — is helping to boost its populations.

After decades of rumors and searches, the existence of a two-foot-long amphibian called “the reticulated siren” has finally been confirmed.

Research into the frog-killing chytrid fungus earns a Golden Goose Award, recognizing the value of federally funded science.

Many species could go extinct if the border wall is built, experts warn.