check out this fascinating chimp video from National Geographic.

Two years ago, a moving photograph taken by National Geographic went viral – appearing on television shows and newspapers throughout the world.. It depicted a group of chimps “mourning” a deceased member of their family. Earlier this morning, National Geographic released a video depicting a similar situation, where several chimps react to the passing of a nine-year-old.

The experts presenting the video tread softly when calling the chimps’ behavior “mourning,” as they are still in the process of determining whether or not chimpanzees are capable of such an emotional reaction.