Mexican doctors have found “no evidence of any assembly or manipulation of the skulls” of the so-called “non-human being” remains that were presented to Mexico’s congress last week — seemingly proving the remains were not human-made.

The scientists conducted a number of tests on the two specimens at the Noor Clinic on Monday and livestreamed the entire procedure on Jaime Maussan’s YouTube channel.

In the end, José Zalce Benitez, the director of the Health Sciences Research Institute in the secretary of the Mexican Navy’s office, said the studies proved the alleged aliens belonged to a single skeleton and were not assembled with human objects.

He also said his team found that one “was alive, was intact, was biological and was in gestation,” pointing to large lumps inside the alleged ET’s abdomen — which he suggested could be eggs.

“I can affirm that these bodies have no relation to human beings,” he previously claimed.

The pair — which were allegedly unearthed in Cusco, Peru, in 2017 — have elongated heads with three fingers on each hand.

But otherwise, they appear humanoid in shape, with two arms and two legs each.

Maussan said they had strong, light bones and no teeth, and had implants of cadmium and osmium — which is one of the scarcest elements on Earth.

Almost one-third of their DNA is “unknown,” he testified, claiming the beings are not part of “our terrestrial evolution.”

“These specimens are not part of our evolutionary history of Earth,” Massaun told Mexican government officials and representatives from the US.

“They are not beings recovered from a UFO crash. Instead, they were found in diatom (algae) mines and subsequently became fossilized.”

“This is the first time it (extraterrestrial life) is presented in such a form and I think there is a clear demonstration that we are dealing with non-human specimens that are not related to any other species in our world,” Maussan, a long-time UFO enthusiast, concluded.

However, many have expressed skepticism about the discovery.

For years, academics, archaeologists, and scientists have said that mummified remains that UFO enthusiasts claim are aliens are generally just modified human bodies.

Others, especially the smaller ones — like those that were presented in Mexico — are assembled with an amalgamation of animal and human bones.

Among the skeptics is physics professor Brian Cox, who has been calling for a sample to be sent to biologic tech company 23andMe for independent verification that the specimens are aliens, Sky News reports.

“It’s very unlikely that an intelligent species that evolved on another planet would look like us,” he said last week.

Julieta Fierro, a scientist at Mexico’s National Autonomous University’s Institute of Astronomy, also said none of the evidence shows “anything mysterious that could not indicate life compounds that do not exist on Earth,” and the Peruvian government has claimed the remains are simply pre-Hispanic objects.

Still, the Mexican politicians said last week that Maussan’s presentation left them with “thoughts” and “concerns” as they weigh passing the Aerial Space Protection Law — which would turn Mexico into the first country in the world to acknowledge the presence of aliens on the planet.