Cows have best friends — and they get really sad when they are apart.

The Story

Cows are not just big animals that stand in fields. They are actually very kind and caring. They make best friends with other cows, and those friendships last for years and years.

Scientists watched cows very carefully and found something amazing. When a cow was near her best friend, her heart beat slowly and calmly. But when the two best friends were separated and put in different fields, both cows got very stressed. Their hearts beat faster and they made lots of unhappy sounds.

Cows also look after each other. They take turns watching for danger while the others eat. And when a cow is scared, her best friend will come and stand next to her to make her feel better — just like a good friend would do for you.

Make Your Prediction

How do scientists know when a cow feels calm and happy?

Pick your answer to reveal the explanation.

Today's Challenge

Put your hand on your chest and feel your heartbeat. Count how many beats you feel in 10 seconds. Now jump up and down 20 times and check again. Did it get faster like a worried cow?

Talk About It

Who is your best friend and how do you feel when you can't see them for a long time?
Do you think other animals have best friends too — like dogs or cats or fish?
How would you feel if you were a cow and suddenly you couldn't find your best friend?

Go Deeper

Cows can also recognise up to 50 different cow faces and remember them for years. They are much smarter and more caring than most people think.