- Fossils prove that sharks lived 300 million years ago.
- Sharks have been around longer than dinosaurs by 200 million years.
- There are between 200 to 250 different species of shark.
- Their only predator is human beings.
- Sharks face global extinction if action is not made to protect them.
- They are critically endangered on the endangered species list.
- Sharks are hunted for their fins, which are made into shark-fin soup.
- Shark numbers are decreasing due to poaching.
- Hammerhead sharks are one of the ten species of the Sphyrnidae family.
- Hammerheads are easily recognizable by their distinct head structure.
- They have a 360 degree view of their surroundings.
- Hammerhead sharks live in the Mesopelagic zone in the water.
- They tend to hunt near coral reefs since there are more varieties of prey.
- Their prey consists of octopus, squid, rays, and sometimes they will resort to cannibalism.
- Scalloped hammerheads hunt in packs for prey to eat.
- Sharks are recognized for their speed and agility.
- The Mako shark can reach speeds of 60 mph.
- Most sharks can swim around 46 mph.
- Sharks will die if they stop swimming.
- Sharks can only swim forward.
- Most sharks have torpedo-like bodies.
- ¨Jaws¨ contributed to the very intense fear of swimming in the ocean.
- Sharks have multiple rows of teeth.
- The front row does the most damage.
- Sharks can have 50 teeth at one time.
- The jaw is not attached to their skull, instead moving separately with two sets of jaws.
- Sharks do not have skeletons made of bone, but cartilage.
- 70% of the brain is used for olfactory reasons.
- Their otoliths are the size of a grain of sand.
- Most sharks live for about 20-30 years in the wild.
- Full grown sharks, like the whale shark, can reach up to 30-33 feet long.
- Only a few sharks are aggressive towards humans.
- Sharks play a huge role in their ecosystem.
- Megalodon is an extinct mega-shark who had bigger teeth than your hand.
- Megalodon went extinct 2.6 million years ago.
- It was 3 times as large as a great white.
- Megalodon was the largest shark ever recorded.
- People thought Megalodon´s tooth was a dragon tongue.
- Megalodon and great whites coexisted for millions of years.
- Great whites eat 11 tons of food each year alone.
- Great whites can also jump 3 meters in the air.
- Great whites cannot be kept in captivity.
- Thresher sharks can whip their tails to stun their prey.
- Angel sharks hide in piles of sand to hide and to kill their prey.
- Whale sharks are 3 times larger than the average shark.
- The Bull shark is one of the only sharks that can withstand freshwater.
- Greenland sharks are the slowest sharks in the shark family.
- The cookie-cutter shark eats parts of other sharks and other animals by cutting into the animal with dagger-like teeth.
- Sharks can track their prey with the sound of their heartbeat.
- Sharks breathe through ram ventilation.
- Every so often, females can reproduce without a male counterpart.
- Sharks are top predators that keep the environment controlled.
- You are more likely to be killed by a falling coconut in Asia ALONE than to be killed by a shark.
- The top of a shark is usually dark to blend in with the top of the water at night.
- At night, sharks swim to the surface to stay warm.
- 30%-80% of a shark´s body is made of water.
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"Human Shark Bait." National Geographic - Videos, TV Shows & Photos - Canada. Web. 25 Apr. 2017.
Main, Douglas. "8 Weird Facts About Sharks." LiveScience. Purch, 06 Aug. 2013. Web. 20 Apr. 2017.
"Shark Facts • Interesting Information & Facts About Sharks." Shark Facts. Web. 20 Apr. 2017.
"Shark Guardian - 100 Awesome Shark Facts." SHARK & MARINE CONSERVATION WORLDWIDE. Web. 20 Apr. 2017.