https://www.goodreads.com/book/show/22408.Invisible_Residents by Ivan_T._Sanderson
https://en.wikipedia.org/wiki/Ivan_T._Sanderson#Cryptozoology_and_the_paranormal
UFOs have been ‘tracked…underwater’ as well as through the sky says former AATIP Director https://www.youtube.com/watch?v=_TtifTBVk_8 WP
Underwater as well as in the skies, people have seen strange shapes & lights through the ages.
Ancient Aliens: SECRET UNDERWATER ALIEN BASE FOUND (Season 6) | History Channel https://www.youtube.com/watch?v=p3Gly4hncdQ
https://www.youtube.com/watch?v=V285FBT9cAI , https://www.youtube.com/c/JREClips/videos , https://www.youtube.com/watch?v=GS2ZKw3G9-w JRE https://www.youtube.com/watch?v=Sd_bqExkllk
David Fravor: UFOs, Aliens, Fighter Jets, and Aerospace Engineering | Lex Fridman Podcast #122 https://www.youtube.com/watch?v=aB8zcAttP1E , https://www.youtube.com/c/lexfridman/videos
Things from other wolds or even other dimensions. How can anyone really know?
