Darwin's Amazing Animals S2019E09 - Tokyo's Winter Wildlife Kingdom -- Okutama, Japan

Wildlife cinematographer Nobuaki Hirano is on a one-year quest documenting the four seasons in Okutama on the outskirts of Tokyo. In winter, he follows the hillside streams in pursuit of brown stream frogs. The males congregate in great numbers waiting for a chance to mate. Their impatience however leads to a comically chaotic scene as they hop on and hold fast to anything, including their fellow suitors and occasionally an unsuspecting fish! Leaving behind progeny is serious business!