Cool shark video containing different sharks and a BIG surprise at the end!!
10 Shark Facts That May Shock You:
1. Sharks do not have bones.
Sharks use their gills to filter oxygen from the water. Sharks are made up of tissues similar to the clear gristly stuff that your ears and nose tip are made of. Their cartilaginous skeletons are much lighter than bone and their large livers are full of low-density oils, both of which helps them to float.
2. Sharks have good eyesight (well most of them!).
Most sharks can see well in dark lighted areas, have fantastic night vision, and can see colors. The back of sharks’ eyeballs have a reflective layer of tissue called a tapetum. This helps sharks see extremely well with little light.
3. Shark skin feels similar to sandpaper.
Shark skin feels exactly like sandpaper because it is made up of tiny teeth-like structures called placoid scales, also known as dermal denticles. These scales point towards the tail and help reduce friction from surrounding water when the shark swims.
4. Sharks have been around a very long time.
Based on fossil scales found in Australia and the United States, scientists hypothesize sharks first appeared in the ocean around 455 million years ago.
5. Blue sharks are really blue.
The blue shark displays a brilliant blue color on the upper portion of its body and is normally snowy white beneath. The mako and porbeagle sharks also exhibit a blue coloration, but it is not nearly as brilliant as that of a blue shark. Most sharks are brown, olive, or grayish.
6. Whale Sharks have a spot pattern that is as unique as a fingerprint.
Whale sharks are the biggest fish in the ocean. They can grow to 12.2 meters and weigh as much as 40 tons by some estimates! Basking sharks are the world’s second largest fish, growing as long as 32 feet and weighing more than five tons.
7. Not all sharks have the same teeth.
Mako sharks have very pointed teeth, while white sharks have triangular, serrated teeth. Each leave a unique, tell-tale mark on their prey. A sandbar shark will have around 35,000 teeth over the course of its lifetime!
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List of Different Species of Sharks:
Whale Shark (Rhincodon typus)
Basking Shark (Cetorhinus maximus)
Shortfin Mako Shark (Isurus oxyrinchus)
Thresher Sharks (Alopias sp.)
Bull Shark (Carcharhinus leucas)
Tiger Shark (Galeocerdo cuvier)
White Shark (Carcharodon carcharias)
Oceanic Whitetip Shark (Carcharhinus longimanus)
Blue Shark (Prionace glauca)
Hammerhead Sharks (Sphyrnidae)
Nurse Shark (Ginglymostoma cirratum)
Blacktip Reef Shark (Carcharhinus melanopterus)
Sand Tiger Shark (Carcharias taurus)
Lemon Shark (Negaprion brevirostris)
Brownbanded Bamboo Shark (Chiloscyllium punctatum)
Megamouth Shark (Megachasma pelagios)
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The link to this shark video is: