The instinctive response of animals when they feel threatened by divers is typically to:

When animals perceive a threat from divers, their instinctive response is generally not to confront aggressively. Rather, the most common reaction among marine creatures is to avoid the threat, which usually means swimming away from it. Many species are not equipped to defend themselves against large predators or perceived threats like humans, and aggression can be a risky strategy for them.

In contrast, some animals might choose to hide or camouflage themselves in their environment, such as among corals, which serves as a protective strategy. Others may simply ignore the diver altogether if they don't perceive an immediate danger.

In summary, while some animals may exhibit aggressive behavior in specific circumstances, it is far more common for them to take flight or hide. Understanding these natural instincts helps ensure that divers approach marine life with awareness and respect for their behaviors and environments.