-Koko, a female gorilla, lives at a research centre in California. Scientist Francine Patterson taught her to use sign language used by deaf people. One day, Koko met a kitten and became attached to it. When a car ran over the kitten Koko expressed her sadness by making the "sad" sign and staying on her own.
-A Piglet sleeps on a tiger at Sriracha zoo in Thailand. Staff at the zoo encourage different animals to live together soon after they are born.