Gargantuan is a word that is used to describe something that is very large or powerful. It is often used to describe things that are very unusual or extreme.
Roamed is to walk or travel around without a specific destination in mind. When you roam the city, you're probably looking for something to do.
Pterosaurs are a group of extinct flying reptiles that lived during the Late Cretaceous period. They were the largest creatures that ever lived on Earth, and they had wings that could stretch up to 3 meters (10 feet).
The wingspan of a bird is the distance from the tip of one wing to the tip of the other. It's an important measurement because it tells us how big the bird is.
To patrol is to walk around or check the area to make sure that it is safe. Police officers patrol the streets to make sure that the area is safe.
Carnivorous is a word that refers to animals that eat meat. Carnivorous animals include animals like lions, tigers, and wolves.
The adjective fearsome means very scary or dangerous. When you describe someone as fearsome, you are saying that they are a very dangerous person.
To submerge something is to put it into a watery environment. You can submerge a ship in the water, or you can submerge a person or object in a swimming pool.