Difference Between Shark and Tuna
Shark vs Tuna Whenever someone starts to think or talk about fish or sea animals, sharks and tunas are amongst the first few. They are clearly different from each other in their appearance, but many would not know what the other differences between these two important animals are.
Shark
Shark is an exclusive saltwater fish of the Class: Chodreichthyes. Sharks are very successful living fossils, because they started their journey on the Earth 420 million years ago.