Bull Sharks

Bull Shark

All the shark fear is mostly due to the Bull Shark. This shark is the most aggressive among all the other types of Shark. Another factor is that the bull shark loves warm sea water. Hence they are generally found near the shores in heavy populated areas. They can survive in rivers too, but that is not their natural habitat.

The bull sharks live in shallow waters never diving deeper than 30 meters. Hence they are the major threat along the coast. 95% of the total human deaths from shark bites have been due to the bull shark. One very interesting fact is that the bull Shark has been spotted very frequently in Brisbane river in Australia. Well the sharks seems to love the island continent. This is really weird as scientific evidence says that Bull Sharks cannot breed in fresh water.

They eat all kinds of fish, turtle and sometimes birds too. Their way of hunting a prey is to nudge and bite. They will first make contact with their snout and then bite and bite until the prey surrenders. Now that you know that they nudge first, be careful when you get a nudge from under water while swimming or surfing on waves.

But in spite of being a dreaded hunter it is essential that Bull Sharks remain in the coastal waters. If they are not there stingrays will multiply and the coastal waters will not be fit for swimming ever. Yes folks the main food of Bull Sharks are stingrays and they live in coastal waters because their main food is here. They are not here for us!

The Great White Shark

The great white shark
The great white shark

Popularised by “Jaws” movie as the ultimate sea monster the great white is a beautiful creature. It is scary but a natural marvel.It is found  in coastal surface waters of all oceans. It is a frequent sight on Australian coastal waters. It is a big animal measuring 26 feet. It reaches maturity at 15 years and lives a long life up to 70 years. It is one of the largest predators of the sea.

Fun facts about great white:

  • Weight – Weighing 5000 lbs it is one of the heaviest creatures. It is not the largest shark, but the most aggressive one.
  • Diet – Its natural prey are seals and sea bulls. they are carnivorous and even eat dead animals. Hence they qualify as scavengers as well. They keep the water clean as indicated by a recent study by national geographic.
  • The baby – A weird fact about the shark bay known as pup is that it swallows its own teeth. Measuring at 4-5 feet the pup can take care of itself since birth.
  • Sensory facts – The great white can sense one drop of blood in 100 litres of water. Armed with this sense and great olfactory senses it is one of the dreadful predators of the oceans.
  • Endangered – The killing of the great whites have made it very close to extinction. It is a species being conserved now as few are left.
  • Speed – The great white are very good and quick swimmers. Speeds of 24 km/hr can test most of their preys.
  • Weapons – The greatest weapon are its jaws. Armed with over 500 teeth it can actually slice through its prey.