When Juliette is making notes about the specimen she first writes "hominid." then writes "primate?" (25:57 - 26:20). All hominids are primates making the question mark unnecessary as she has already noted it is hominid.
When Monroe says good-bye to Larry, he uses the German proverb "Alles hat ein Ende, nur die Wurst hat zwei" ("Everything has one end, only the sausage has two"). It is rather strange for Monroe (or his dad) to say this at a grave or deathbed because it is more of a cheeky phrase and has nothing to do with being respectful to a deceased person (as Monroe seems to be mourning his death). Today, the phrase is most commonly known as the title of a 1986 song by Stephan Remmler which deals with relationship issues.
All hominids include primates, adding the question mark after was not a mistake. Just a reminder that it was not human.