Real monsters: Titanis

A real life monster that existed was the titanis, a flightless carnivorous bird that lived during the Pliocene and Pleistocene epoch. It stood over 8 ft tall and weighed about 150 kg. Fossils scattered over the Americas. It belonged to the well known "Terror Birds" of prehistoric times. It's prey would've been a lot of animals from those small as mice to large as cows. They hunted a variety of animals including snakes and they were ferocious birds. The top predator of the age. Their massive powerful beaks lifted their prey and smashed them against rocks. These awful birds ran very fast and not only were their beaks bone crushing but their feet were also weapons. It's believed from studying their fossils of Terror Birds such as the titanis could hear sounds at low frequency. Terror birds made hideous and frightening sounds that were so loud at low frequency to frighten other animals. These birds were infamous but they lived for several million years until they died out during the Quaternary extinction event.

Howls ^^