A three-year-old gorilla fell into a five-metre moat in a zoo in Israel, but her older sister came to the rescue.
The big sister got down into the moat and let her sibling climb on her back. The big sister tried to climb up the moat wall, but there was a power cable. She got scared and fell down.
The pair later successfully climbed up the other side of the moat.
Difficult words: moat (a deep, wide space with water in it to protect an area), rescue (to help), climb (to move up).