
Unfortunately I haven't found any statistics, either published or anecdotal, indicating when permanent teeth erupt in spider monkeys. I suspect nobody knows. Which is unfortunate, because the information could help us pinpoint Lolita's age. We know Chiquito's birthday to within a day or two, because he was tiny when he was orphaned. But we don't know how big Lolita was when her surrogate family adopted her, or even the date. (One aspect of parenthood we'll miss out on this time around is birthday parties.)
As soon as Lolita gets a few more teeth it should even the playing (and biting) field, and we'll introduce her to cage time with Chiquito...