Why are we protecting animals?

I remember a movie in which people fly to another planet, but they fly for many years on the way, so humans fly by some kind of machine after they go to sleep, that is, before they fly to their destination. Humans don't get old, but halfway through, a machine wakes up because of external factors. When the man wakes up, he finds that the spaceship is full of robots. There is no one human. He lived alone for some time. Finding it super boring and arriving at his destination, he thought he was old enough to die on the ship, so he began a plan to wake up the other heroine.

 The reason for the above story, just want to say, if one day only we humans on the earth, then everyone becomes very boring, the earth will become lifeless, and even will bring human wars against each other. So in order to avoid all this, we must protect animals and make the earth colorful and colorful.

 Let us act.