California Bigfoot investigators were shocked over Memorial Day weekend when they found strange markings and hair on their pickup truck windows.
Now, they're hoping DNA tests will prove once and for all the existence of the legendary man-beast.
"On the passenger side window, when I first saw it, I almost threw up," said Jeffrey Gonzalez, an AT&T electronics technician and founder of the Sanger Paranormal Society.
Gonzalez and several others were in California's Sierra National Forest searching for evidence to confirm the reality of the creature. When it started to snow at their campsite, they were forced to leave two of their vehicles behind.
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"Two days later, we came back to pick up our vehicles and that's when we found the impressions," Gonzalez told AOL Weird News, recalling what he and his companions noticed on the passenger window.
"Apparently, the creature was looking in the window and left behind dirt and oil on it, leaving such an awesome picture, you can see the nose, the eye, the hair all over the face and the shoulders -- it's creepy, and it's not a bear."
Gonzalez and his friends -- including a former science teacher and a correctional officer -- also found a 12-inch footprint at the site. They concluded their hairy intruder wasn't a bear because none of the four ice chests that were filled with food on the back of Gonzalez's truck had been touched.
But it wasn't just the passenger side window that presented a surprise -- the driver's side of the truck showed the imprint of a much larger creature, strongly suggesting there were two unexplained visitors to the campsite.
"An impression was left of a nose, eyes and lips, but they were extremely large," Gonzalez said. "The lips measured about 6 inches long. You can see that the whole face was full of hair, so when it leaned up against the window, you can see the depth of the eye socket in the glass.
"I've shown people -- non-believers -- this photograph and this totally freaked them out."
After Gonzalez returned home that day, he called a forensic expert to take DNA samples of the fur or hair that was left around the window impressions.
"One of the cautions I have about finding a nose print or anything on the side of a car is that it could be a homeless person, resulting in people letting their imaginations go wild," said Loren Coleman, owner of the International Cryptozoology Museum in Portland, Maine.
"Of course, if you take a DNA sample and it comes back near-human or primate, then it would match both Bigfoot and a homeless person," Coleman told AOL Weird News.
But what about the addition of the large footprint near the truck where the window impressions were made?
"A 12-inch footprint is not too exciting, because it could be a human or bears imprinting on top of each other," Coleman said.
"In this case, it might not have been a homeless person, but in wilderness areas, there are other hikers and somebody would've naturally put their nose up to the window to look inside the car."
Gonzalez is holding a news conference on June 23 at the Piccadilly Inn in Fresno, Calif.
"I'll be presenting video of both windows, pictures and live testimony from the people who shared the event with me. We will also have a forensic expert who took DNA samples," he said.
Coleman, a long-time investigator of Bigfoot and other legendary creatures that come under the category of cryptozoology, is cautious about the outcome of this kind of news.
"You know, I'd be a fool if I didn't say that I'm hoping there's definitive evidence of Bigfoot found. I hope somebody will turn over any evidence to some scientists who could then hold a news conference at a university.
"Then people won't doubt what's going on."