Which mammal, the third largest, is Igano Kabamaru a reference to?
Hippopotamus The common hippopotamus ("Hippopotamus amphibius"), or hippo, is a large, mostly herbivorous and aggressive mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus ("Choeropsis liberiensis" or "Hexaprotodon liberiensis"). The name comes from the ancient Greek for "river horse" (ἱπποπόταμος ). After the elephant and rhinoceros, the common hippopotamus is the third-largest type of land mammal and the heaviest extant artiodactyl. Despite their physical resemblance to pigs and other terrestrial even-toed ungulates, the closest living relatives of the Hippopotamidae are cetaceans (whales, dolphins, porpoises, etc.) from which they diverged about . The common ancestor of whales and hippos split from other even-toed ungulates around . The earliest known hippopotamus fossils, belonging to the genus "Kenyapotamus" in Africa, date to around .
Sigbin The Sigbin or Sigben is a creature in Philippine mythology said to come out at night to suck the blood of victims from their shadows. It is said to walk backwards with its head lowered between its hind legs, and to have the ability to become invisible to other creatures, especially humans. It resembles a hornless goat, but has very large ears which it can clap like a pair of hands and a long, flexible tail that can be used as a whip. The "Sigbin" is said to emit a nauseating odor.