Had not thought of this aspect of COVID.  The animals love watching us as much as we love watching them. It it stimulation and we all NEED that!

During the pandemic, the animals in a zoo in Germany were depressed and never left their dens.

Nobody went there anymore, not children not adults.  The zoo remained empty. 

So the zookeeper called a pianist to play for them.  The pianist composed this piece specifically for the animals.
See what happened.