Dr. Charles Goldman, limnologist and director of the Tahoe Research Group at UC Davis, organized conferences in Nevada in 1984 and 2004 to discuss “Unidentified Swimming Objects,” where a number of scientists testified they had seen Tessie. The only person to have been to the bottom of Lake Tahoe, Goldman says his ’79 expedition was “inconclusive” in terms of the monster. His possible explanations include frolicking river otters, mirages, colliding boat wakes, rocks, and that reliable old sturgeon. In case Tahoe does harbor a cryptid, Goldman has his own name for it: Acipenser Tahoensis. (Which isn’t as catchy as Tessie--and a sturgeon isn’t as fun, either.) But witness’ descriptions don’t sync up with a hypothetical ‘Mother of All Sturgeons.’ In April 2005 tourists from Sacremento reported seeing a creature “with three to five humps along its back” in Tahoe.
And “the problem is that sturgeon have very noticible, rough scales. They’re very scaly, prehistoric-looking fish. What Beebe and others have claimed to see is smooth like an eel,” McCormick says. “I’m convinced there’s something big out there, and its not natural to Lake Tahoe. But if it’s not a sturgeon, what the hell else could it be?”