Grooves in the limestone at Italy's Monte Cònero may have been left by sea turtles fleeing an earthquake 80 million years ago.
The Upsweep is an unidentified sound detected by the NOAA, first recorded in August 1991. Almost siren-like, the Upsweep is ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results