Cryptozoology (from Greek κρυπτός, kryptos, "hidden" + zoology; literally, "study of hidden animals") is the search for or get evidence of animals or plants or entities who existence has not been proven in a scientific manner. The things cryptozoologists study are often referred to as cryptids. This includes looking for living examples of animals that are considered extinct, such as non-avian dinosaurs such as Mokele-Mbembe thought to be a dinosaur living in the Congo. Creatures whose existence lacks physical evidence but which appear in myths, legends, or are reported, such as Bigfoot, Loch Ness Monster and Chupacabra and a lot more. Sometimes wild animals dramatically outside their normal geographic ranges, such as Alien Big Cats. Cryptozoology is not a recognized branch of zoology or a discipline of science. It is looked at as a pseudoscience.