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Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
The Bristol Zoo Project added on its website that cameras captured the "baffling" footage of the mystery animal on a night vision camera near the park's Bear Wood habitat, where "bears and wolves ...
The bursts of sound resemble quacks, earning the recording the nickname “Bio-Duck.” Speculation about their source was varied. It could be an underwater submarine, or a fish .
Here are just some of the strange encounters that were caught on camera this year. A pack of mountain lions. Animal sightings are obviously very common on doorbell cameras, with birds, squirrels ...
Pages in category "Unidentified sounds" The following 11 pages are in this category, out of 11 total. This list may not reflect recent changes. ...
A camera trap is a camera that is automatically triggered by motion in its vicinity, like the presence of an animal or a human being. It is typically equipped with a motion sensor —usually a passive infrared (PIR) sensor or an active infrared (AIR) sensor using an infrared light beam.
Researchers discovered the striped animal lurking in a nature reserve at night. 2-foot-long creature — with yellow eyes — found on tree in China. It’s a new species
A 2000 report by staff at "The Straight Dope" also explained rods as such phenomena, namely tricks of light which result from how (primarily video) images of flying insects are recorded and played back, adding that investigators have shown the rod-like bodies to be a result of motion blur, if the camera is shooting with relatively long exposure ...