Short answers, pulled from the story.
True frogs inhabit every continent except Antarctica. Their distribution spans North America, South America, Europe, Africa including Madagascar, Asia, the East Indies, New Guinea, and northern Australia.
Typically true frogs possess smooth moist skin paired with large powerful legs. Extensively webbed feet allow for efficient swimming capabilities while some species can live in brackish water zones.
Ranidae diverged from Indian-endemic Nyctibatrachidae during the early Eocene epoch. The family began dispersing out of Asia at the end of the Eocene period and had colonized every continent except Antarctica by the beginning of the Miocene.
As of mid-2008 ongoing studies continue to clarify lineage boundaries after several former subfamilies became separate families. In 2023 Amphibian Species of the World tentatively synonymized Amnirana Chalcorana Humerana Hydrophylax Indosylvirana Papurana Pulchrana and Sylvirana into Hylarana until significant taxonomic confusion surrounding the group could be cleared up.
Odorrana Fei Ye and Huang 1990 has sixty-four species while Lithobates Fitzinger 1843 holds fifty-five species. Rana Linnaeus 1758 has fifty-eight species and Amolops Cope 1865 maintains eighty species.