Dr. Hal Puthoff claims the U.S. has recovered remains of four separate species of alien life from UFOs, citing people involved in the recoveries.

MORE: I'm a pastor who attended a secret UFO disclosure meeting. We saw images of 'translucent beings' that chilled me to the bone A former CIA scientist has claimed that there are several alien ...

According to intelligence reports, each alien species has a humanoid appearance with two arms and legs, Davis claimed.

A former CIA-linked physicist's comments about 'four alien species' have reignited UFO conspiracy theories online.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.

Viral images falsely depicting President Trump meeting mysterious figures at the White House have sparked alien conspiracy ...