English composition about dolphins

1。 After the appearance of human beings, dolphins are facing the crisis of killing and pollution.

After the appearance of human beings, dolphins are facing the crisis of killing and environmental pollution.

2. How can we save dolphins from the crisis of hunting and pollution?

How can we help dolphins stay away from hunting and environmental pollution?

3. In the past, dolphins were killed as food.

In the past, people hunted dolphins mainly for food.

But now people kill dolphins, even for entertainment and dog food.

But now people hunt dolphins for entertainment and make dog food.

What we can do is to stop our stupid behavior, don't eat dolphins and stop buying dog food made by dolphins.

All we can do is stop our stupid behavior and don't eat dolphins (and of course don't buy any food made by dolphins)

And don't buy dog food made of dolphins.

I wrote it myself, just a few words, hoping to help you! Grammar should not be wrong.