👶Toddlers helped a grown-up they had never met.

🦍A person reached for something. Young chimps helped.

👶Nobody asked them to help. Nobody gave a reward.

🐀A rat is stuck. A free rat opens the trap door.

🐀After some days, rats opened it with their heads, fast.

🐀Rats shared chocolate chips with a freed rat. About half the time.

❤️Empathy is sensing and sharing what another person feels.

🐘Asian elephants calm upset elephants with touch and sounds.

❤️A kind act for a person can make you happier.

Words to know

• empathy: sharing feelings
• toddlers: very young children
• chimps: apes