Sharks are apex predators, but they consistently avoid dolphins in the wild. The reasons involve speed, agility, group coordination, and the fact that a dolphin's rostrum is one of the most effective defensive weapons in the ocean. Here is what the science actually says about this rivalry.

Killer whales, also known as orcas, are often thought of as whales due to their large size and predatory behavior. However, they are actually a species of dolphin. Dolphins are…