Some of the names in this Article use an unofficial English translation of its official Japanese Name. The name is obtained either by using Japanese translating programs or through previous existing English equivalent terms in the game. The names will be used as quick references around other articles in the Monster Hunter Wikia until Capcom reveals the official English names for them.
The Nest Hole (巣穴), or simply "Den", is a newly discovered section of the Old Tower in Monster Hunter Frontier's Season 8 update. Dyuragaua may have avoided human contact for a long time, which would explain why they were only recently discovered by defending their nest.