56K views · 249 reactions | Chimpanzees' cultural traditions, such as hurling stones at trees and fishing for algae, are often mysterious to scientists. And we may not have much time to sort out what’s going on. Here are some of the behaviors scientists have spotted. (Learn more: https://www.sciencenews.org/article/human-encroachment-threatens-chimpanzee-culture) | Science News Magazine | Facebook