An Ape were a species of primates on Sera. Apes are generally tailless primates which sets them apart from monkeys. They are generally larger and some will knuckle-walk.
They are intelligent animals, with primatologists making lexigram boards to allow some ape species to use symbols as a form of simple communication. 
In the earliest years of the Pendulum Wars in the secret facilities of Mount Kadar, some of these lexigram boards eventually made it to the first generation Locust specimens as a form of communication. After the Mount Kadar Laboratory Uprising, the Locust eventually appropriated these lexigram symbols as the Locust Runes.
The human race is an example of an ape, along with the genetically engineered Locust Horde despite their reptilian appearances. A race of subterranean apes were biologically engineered into the Brumaks by the Locust Horde.
|Human and Surface Creatures|
|Chairman · First Minister|
|DR-1 · Gears (Commando, Hivebuster, Medic, NCOG Marine, Onyx Guard, Sapper) · JACK (Geobot) · Shepherd (Command Bot, Deadeye) · Silverback (Mechanical Loader) · Tracker (Shock-Bots, Shock Tracker) · Watcher (Guardian, Sentinel)|
|Indies (Cosmonaut, UIR Elite, UIR Officer, Sandswept Trooper)|
|Ape · Armored Fish · Armored Shark · Beast of Pahanu · Cat · Chicken · Cattle · Crow · Dog · Goat · Horse · Iron Jaw · Mawfish · Monkey · Pig · Rat · Rock Eel · Salmon · Sand Wasp · Scree-Mite · Serano Blowfish · Serano Cephalopod · Serano Lobster · Serano Shark · Tyran Steelpike · Unidentified Mammalian Carnivore · Wakaatu · Whale Fish · Whale|