Answer:
Key Detail:
In the Serengeti Park, wild animals like lions are facing dangers; not the dangers of hunting because hunting wasn't allowed. These animals seem to be in danger due to disease. This makes them to be in trouble and gives the tourists and the veterinarians much concern.
Step-by-step explanation:
The above key detail gives important information about was going on in the Serengeti Park. Lions were in trouble as they battle with disease. Even the veterinarians didn't understand what was going on. They seem to be helpless. It became clear that what was happening wasn't ordinary but extraordinary. Something needed to be done.