Modified from skepdic.com:
The BBC claims it has proved that Nessie the plesiosaur (a marine reptile) does not exist. What they did was use satellite navigation technology to aim 600 separate sonar beams through Loch Ness to ensure that none of the loch was missed and found no trace of the monster. The research team hoped their instruments would pick up the air in Nessie’s lungs as it reflected a distorted signal back to the sonar sensors. The only signal they got was from their test buoy moored several meters below the surface.
“We went from shoreline to shoreline, top to bottom on this one, we have covered everything in this loch and we saw no signs of any large living animal in the loch,” said Ian Florence, one of the specialists who carried out the survey for the BBC.* The show, called Searching For The Loch Ness Monster, was made for BBC One.
A confession further damages monster hopefuls.
For that story, watch this National Geographic video.
Will this end the belief in Nessie? Don’t bet on it.