Creatures, either physical or non-physical, that we interpret as being frightening. They may have what we consider to be a horrific appearance and may be very large in size. Monsters are often considered to be imaginary, however real creatures that we consider to be monsters may exist or may have existed. They could also be misinterpretations of non-horrific natural phenomena.

One of the most famous of such creatures is the “Loch Ness Monster” who is called a monster because of its size and sudden appearances. Some claim it is a fraud while others suggest a left over dinosaur, a misinterpretation of a branch, or possibly even a circus elephant. People around Loch Ness affectionately refer to their monster as “Nessie,” and tourism created by people looking for the creature has helped the local economy.