Exotic Zoology is a 1959 cryptozoological book[1] by Willy Ley, a science writer and space advocate.

[3] Throughout the book he shows examples of organisms that were rumored to exist, or were thought to be impossible, that were shown to be real; and others that were accepted as fact, that were discovered to have never existed: "He speculates about dragons and sea serpents, wingless birds and Abominable Snowmen.

"[4] The book, in its description of (fictional) peoples and creatures, has been compared to John Mandeville's Travels.

[5] Some of the claims have been criticized or ridiculed, for instance the statement that giant squids had left scars on whales of two feet in diameter.

[6][7] Exotic Zoology was not reviewed in many academic journals.