What does cryptozoology mean?
Cryptozoology refers to the study or search for legendary or suspected animals whose existence has not been verified by mainstream science — creatures collectively known as cryptids. Familiar examples include the Loch Ness Monster, Bigfoot, and the yeti. The term combines the Greek roots 'kryptos' (hidden), 'zoon' (animal), and 'logos' (study). Although its practitioners sometimes employ legitimate fieldwork methods such as tracking, interviewing witnesses, and analyzing physical traces, cryptozoology is widely classified as a pseudoscience because it typically lacks testable hypotheses and peer-reviewed evidence. The word appears frequently in documentaries, books, podcasts, and popular culture, where it evokes mystery and adventure more than academic rigor. Understanding cryptozoology is useful both as a vocabulary item in itself and as an example of how English forms compound scientific terms from Greek elements — and of how such terms can describe pursuits that sit outside accepted scientific practice.
nounThe study or search for animals whose existence has not been proven, such as the Loch Ness Monster or Bigfoot.
- The pseudoscientific study or pursuit of creatures whose existence is unsubstantiated, known as cryptids.
"Her lifelong fascination with cryptozoology led her to the misty shores of Loch Ness every summer."
"The documentary explored how cryptozoology blends genuine fieldwork with folklore and speculation."
"Mainstream biologists tend to dismiss cryptozoology as a fringe pursuit lacking rigorous evidence."
Rarely pluralized; the word is almost always used as an uncountable mass noun referring to the field as a whole.
"Different regional traditions have given rise to distinct cryptozoologies, each focused on local legends."
Cryptozoology is the only 'science' whose most famous subjects — Nessie, Bigfoot, and the chupacabra — have never been proven to exist at all.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cryptozoology
Cryptozoology derives from three Greek roots: 'kryptos' meaning hidden, 'zoon' meaning animal, and 'logos' meaning study or discourse. The term was coined in the twentieth century, most commonly credited to the French zoologist Bernard Heuvelmans, who helped formalize the field in the 1950s with his work on unknown animals. Related words sharing these roots include zoology, which shares the animal root, and cryptography, which shares the hidden root.
Related word forms
How cryptozoology is actually used
Cryptozoology is generally regarded by mainstream science as a pseudoscience, so the word often carries skeptical or ironic connotations in formal contexts. It is a niche but well-established term in popular media, documentaries, and hobbyist communities.
Easily confused with cryptozoology
Cryptography is the study of secure communication through codes and ciphers, while cryptozoology is the search for unproven hidden animals.