Anya, a three year old gorilla, fell into a moat where visitor's can view the animals.
When she fell down, her eight year old sister, Emilia, took a brave leap down into the moat to rescue her sister.
Emilia can then be seen carrying Anya on her back up the wall, but the two fall back down together after getting scared by a power cable.
You can hear the young gorillas screaming for help in the video.
Thankfully, the two gorillas found their way out together.
Many times, we see animals have empathy for one another, and rescue each other just as humans would.