I think sharks are misunderstood. They are not mindless killing machines, they are actually very fascinating creatures.
- The smallest species of shark is the Pale Catshark, and it only grows to eight inches in length.
- The largest species of shark is the Whale shark, which can grow to 75 feet long.
- The skeleton of a shark is not made of bone, instead it is make of cartilage.
- Sharks are saltwater fish; however, the Bull Shark is capable of living in freshwater and saltwater.
- The sharks skin is so rough that it has been used as sandpaper.
- Sharks have small holes around their head that can detect electrical fields in the water. This allows the shark to locate prey, even if they cannot see it. It also explains why sharks have been known to attack metal objects, which give off a weak electrical field.
The more I learn about sharks, the more impressed I become. They truly are fascinating creatures.