First Blood - S1-E1
Other mistake: When he and Chloe encounter a group of lions scouring for food, what tips Oz off that something is wrong is the unusual sight of more than two males together. The more obvious indicator is that they are all male; in lion prides under normal circumstances, the hunting and gathering of food is done by the females.
Other mistake: Whenever the sequence with the bear attack occurs, they're talking about brown bear information and show a video. The video they show depicts a black bear at one point.
Answer: My assumption would be a simple "it's not important" explanation. It's one of those typical selfless things in film where the characters don't provide specific information as to not make other characters worry about them, in addition to her intelligence background she may have just thought it would distract them from their main goal. Nothing really "happened" to her that would really drive plot development either, as she was quickly rescued from the situation. A similar example would be when Chloe called right after the speech she gave, Jamie doesn't tell her that Jackson was shot, just that he was hurt and that he'll be OK. We can assume that she just doesn't want Chloe to worry about him.