Space animal hypothesis

[6] In 1948, the Saturday Evening Post quoted Luis Walter Alvarez's opinion that the "gizmos" appeared to be "alive".

[9][1] That year, Desmond Leslie's book Flying Saucers Have Landed speculated that a UFO reported over Oloron and Gaillac France might been a "huge living thing".

[12] By 1955, original saucer witness Kenneth Arnold began to promote the theory, suggesting that the UFOs are "sort of like sky jellyfish."

[20] Arthur Conan Doyle's 1913 short story "The Horror of the Heights" featured an aviator breaking an altitude record who discovered an "air jungle" full of translucent animals resembling jellyfish and snakes.

[2] In September 1936, Ramond Z. Gallum's short story "A Beast of the Void" envisioned creatures capable of interstellar travel.

[21][1] Star Trek explored the concept of space animals in episodes like "The Immunity Syndrome" (1968) and "Galaxy's Child" (1991).

Saucer-like space animals in popular culture, as shown by the 1948 illustration of Arthur Conan Doyle's The Horror of the Heights (top) and the 2022 Jordan Peele film Nope (bottom)