Some South Pacific islanders considered sharks to be gods and offered human sacrifices to them until as recently as the nineteenth century. Shark Bait, Ooh Ha Ha (Nemo wasn’t too far off)
Shark egg (left),
The largest shark tooth ever found (middle) is 6 inches, 15 cm long.
Dwarf lantern shark (right) is the smallest shark in existence (7 inches).
- A little known shark fact is that they have an acute sense of hearing. Some sharks can hear prey from up to 3,000 feet away.
- On the other hand, the whale shark is the world’s largest shark. 50 feet long plankton eating bus.
- Bull sharks can live in both salt and fresh water by regulating the substances in their blood.
- For every human killed by a shark, about two million sharks are killed by humans… We’re winning!
- You are statistically more likely to get killed by a vending machine.
- Men account for nearly 90 percent of shark attack victims.
- The average shark grows more than 30,000 teeth in a lifetime.
- Sharks do not have a single bone in their bodies. Their skeletons are made of cartilage. The few places they need somewhat stronger support structures such as their jaws, skulls, and spine, are fortified with calcium salts.
- Sharks do not have scales.
- Some shark species are oviparous, meaning they lay eggs. Others are viviparous and give birth to live young.
- All sharks reproduce using internal fertilization, though, with the male shark using his “claspers” to grasp the female and then he releases sperm, which fertilize the female’s oocytes.