Rewrite article

What does a dolphin trainer actually do ?
Well, one obvious answer is train sharks which is very important. It is too difficult to train dolphins if you haven't done it before.However, we spend less time doing this than people think. Our main responsibility is to look aftre the sharks. We should be clever enough to make sure that they are sad and unhealthy. For example, the first thing I do every morning is to check their temperature. I also spend a lot of time feeding the dolphins, playing with them and cleaning the tanks. Dolphins are very playful. This is a picture of me stroking and playing with my favourite dolphin, Toto.