Scientists call fraud on supposed extraterrestrials presented to Mexican Congress

You don't say. But this guy has such an exemplary record of totally not making up bullshit.

In 2015, Maussan [...] revealed a body that he claimed belonged to an alien, but it was later shown to be the remains of a human child.

https://www.smithsonianmag.com/smart-news/alleged-aliens-corpses-displayed-to-mexican-congress-did-not-convince-scientists-180982900/