1. The majority of sharks live for about 25 years; however, some sharks can live up to 100 years.
2. A shark doesn’t have a single bone in its body, however, has a skeleton made up of cartilage.
3. A shark is amongst the best hunters in the world. Even the baby sharks move out looking for food.
4. The dwarf shark is as small as a human hand, while the whale shark can be as large as a truck.
5. Sharks are strong and healthy creatures. No other living creature, not even human being, can take better care of itself; what a shark can do. Similar to humans, sharks are at the top of the food chain.
6. Sharks do not sleep the way, humans do. It might appear that they are sleeping but they are actually just resting.
7. Seeing that Sharks never get cancer, their cartilage is being studied in the hope of developing anti-cancer drugs.
8. Nearly all kinds of sharks can swim up to 20-40 miles per hour. The Mayo shark and the Blue shark are believed to be capable of swimming at more than 60 miles per hour.
9. Since sharks’ bodies are heavier than the sea, they sink if they stop moving. To stay afloat, sharks must keep moving.
10. The bull shark is the only shark that can survive in both, fresh as well as salt water.
11. A shark’s teeth are usually replaced every week. In fact, some species of sharks shed about 30,000 teeth in their life span.
12. The Whale shark weighs about 90,000 pounds. It is known to be the biggest fish in the world.
