Both emotions are characterized by similar central nervous system arousal. In large part, it is our psychological interpretation of arousal feelings that determines whether we will feel fear, anger, or a combination of both. We said above that anger is a sort of transformation of pain, a category including fear feelings as well as physical pain. Considered physiologically (from the perspective of the body), there are a great number of common characteristics shared by anger and fear.
Dolphins eat a variety of different foods. Some of them eat fish, such as mackerel, herring and cod, while others eat squid. Large dolphins, such as Orcas may eat other marine mammals, such as sea lions or sea turtles. How much a dolphin eats depends alot on what type of fish or ssquid they eat. Some fish, such as mackerel or herring, have alot of fat in them. This means that a Dolphin will get alot of energy from eating these fish.
Dolphins are close to the top of the food chain. Their main predator in the ocean is the shark, but many sharks and other potential predators avoid dolphins due to dolphins' aggressive defenses. Dolphins are capable of killing sharks.