I know that Guido says that he’s never seen another creature like himself before. Also, we know that being endangered in LBT is quite possible as Doc says that there aren’t many of his kind left.
I did get a bizarre image of Manny from Ice Age 2 thinking he was the last mammoth left, as both he and loads of others believed him to be the last mammoth left. (He did find Ellie, and kinda basically begged her to be his mate, thinking that they were the last hope for the mammoth species.)
I do wonder if Guido, if he ever saw another female Glider, would beg her to marry him on the spot, thinking the same thing as Manny did.
Um, Oviraptor was also supposed to be from Asia I think, yet Ruby’s whole family seems to have ended up in North America. How did Guido lose all the others of his kind but Ruby and her family managed to stay together?
Idk. Maybe Ruby’s family was just better at sticking together. Besides judging by how young Ruby is shown to be in the flashbacks during the TV show, she may have hatched in North America after her mother and father somehow made it over.