Mike Heithaus

Whether dolphins or whales will purposefully defend a person from a shark attack is a topic of debate among scientists. But those who have experienced these terrible experiences don't question what actually happened.

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Bull sharks fighting a great hammerhead was a rare encounter between top ocean predators that occurred in Florida and was caught on camera. Dr. Heithaus and a team of shark experts launch an investigation pinning one against the o...

Biologists Dr. Mike Heithaus and Dr. Frances Farabaugh free dive with the tiger shark, one of the most dangerous sharks, to learn why sharks are drawn to Hawaii's volcanoes.