The Chimera Ant Queen was the first Chimera Ant to be seen in the series.[2] Though Chimera Ant growth is generally about 10 centimeters (3.93′′), a mutation had caused the Queen to reach about 2 meters (6′6.7′′).[1] The Queen, unlike former queen Ants, also had the ability to walk upright on two legs and with only four insectoid limbs instead of six. The Queen also had a set of human-like teeth in addition to two sets of ant mandibles. Her left antenna and forearm are missing, the latter falling off as she washed ashore. It is unknown how the queen came into being, however, it has been implied during the Chimera Ant arc that the Queen bore human genetic material as her anatomy resembled that of a woman.