👉 In ancient Greek mythology, the term "hypsiprymninae" refers to a group of creatures that were thought to inhabit the underworld. These beings were often depicted as being large and dark, with horns and spikes on their heads. They were said to be able to communicate with the spirits in the afterlife, but they had no understanding of language or concepts like mathematics or arithmetic. The term "hypsiprymninae" was a common term used by ancient Greeks for these creatures