1/ Does he prefer going somewhere at the seaside. Heenjoys swimming, windsurfing, and diving? 2/ As he was very good at swimming and diving and was interested in biology, he managed to join a scientific expedition that studied the sea life of the Red Sea coast at that time, didn't he? 3/ What allowed him to help them in their work and gave him a special suit for diving, so he was able to stay deep in the sea for quite a long time?5/ Had he ever seen sharks alive, if he recognised it at once?