#16. Whale Shark (Rhincodon typus) is the biggest sharks found today and they can grow to a length of 12-14 meters. These creatures mostly feed upon planktons and it weighs around 21 tons. -Source
#17. The Greenland shark (Somniosus microcephalus) or also known as the gurry shark, or grey shark has the longest known lifespan of all the vertebrae species of the world estimated to between 400-500 years. Their meat is also toxic due to the high concentration of trimethylamine N-oxide in its tissues. -Source
#18. Cookie-cutter Shark (Isistius brasiliensis) or also known as cigar shark have the largest teeth of all sharks. they have even disabled a nuclear submarine in the 1970’s by cutting through the soft parts of the submarine like electrical cables and rubber sonar domes. -Source
#19. Between 70 and 200 million sharks are hunted and killed for shark products and shark fin soup and because of this overfishing certain shark species have been hunted down by approximately 90%. -Source
#20. The gestation period for a pregnant female shark can range anywhere from six months to two years and most of the sharks lay their eggs in the water. the egg case is known as a mermaid’s purse when empty. -Source
#21. This may come as surprise but only 3 species of the sharks are banned from fishing and they are the Whale Shark, Basking Shark, and Great White Shark. -Source
#22. Many sharks are killed by the Ghost nets which are fishing nets left behind by fishermen and this is very dangerous for all marine life. -Source
#23. It’s not like that shark does not have ears but they are inside not outside and it still can help them to hear a sound from more than two football fields away. -Source
#24. Contrary to popular belief that sharks are immune to cancer is false and recent studies done on sharks have shown that not only they can get cancer but a variety of illnesses and deformities. -Source
#25. Many of you may confuse over rays and sharks because rays also look “sharky”. Guitarfish and the Bow Mouth Ray are some of the examples. -Source
