Breh they're living in tents and makeshift shanty homes. Ceiling fans, running water, 4k HDR televisions and Comcast Home Security systems are slightly out of their scope. It's not so much about how the baby got there as it is the bear wondering how they got there. They literally live amongst wild animals. Mom probably went out back to the lake to handwash some laundry and the bear darted in the tent and snatched up the baby like a sack lunch on a 3rd grade field trip. In that environment, it only takes a second for a predator to prey.
There's countless of videos of missing villagers/children being found dead by the community inside of alligators, snakes, ect. What we're doing now-- exchanging messages with full bellies while posted up with Netflix in the background and the temperature set to 69, with our kids sleeping soundly upstairs -- is a blessing.