100 interesting facts about sharks

1. The body of a shark produces a special substance that blocks all its pain sensations.

2. Up to 30 tons per 1 sq. cm is the largest shark bite force.

3. About 3.5 years is the gestation period for a shark.

4. The speed of large sharks can reach up to 50 km/h.

5. The shark does not know how to stop abruptly.

6. No more than 15% of its own weight is the average weekly diet of a shark.

7. 15 cm is the smallest shark size, and 12 meters is the largest.

8. Shark Minimum Speed ​​– 2.5 km/h.

9. To regulate the salinity of water, the body of a shark can produce special means.

10. To conserve energy, the shark can turn off part of the brain.

11. In the water column, predator skin scales help to move faster.

12. Thanks to its large liver, the shark stays on the water.

13. This predator has a low level of blood flow activity.

14. Shark skin is lubricated with a special oily secret to reduce resistance when moving in water.

15. Some species of sharks may have glowing eyes.

16. The lateral line helps sharks navigate in space.

17. Shark feeding habits can be affected by the phases of the moon.

18. Sharks never stop moving and never sleep.

19. Warm-blooded species include the blue, great white and mako sharks.

20. Sharks never blink.

21. There is a species of shark that emits photophores on its fins.

22. Along the intestine there is a special valve in the form of a spiral to increase the absorption surface of the large intestine.

23. Two whirlwinds in one muscle movement can create a shark’s tail fin.

24. The osmotic pressure of a shark provides half the salt content in the sea water of the ocean.

25. Sharks can suffer from food fever.

26. Some sharks can rest at the bottom of the ocean.

27. If you pull the shark by the tail for a long time, it can drown.

28. The shark’s sense of smell is one of the best on the planet.

29. A shark can experience a voltage of 0.01 microvolts.

30. Even above the surface of the water, a shark can smell it.

31. In 360 degrees, the hammerhead shark is able to inspect the space.

32. The shark is perfectly oriented in space.

33. The Earth’s electromagnetic field serves as a “compass” for sharks.

34. The structure of the eye in sharks has the same configuration as in humans.

35. The muscles of the diaphragm in sharks are responsible for focusing the image.

36. A shark can see at a distance of up to 15 meters in opaque sea water.

37. The shark sees 45 frames per second.

38. Shark eyes are able to distinguish colors.

39. 10 times better than a shark’s vision than a human’s.

40. A shark can safely swim in the dark and with its eyes closed.

41. A shark can feel sounds with its entire skull.

42. In the range of 10-800 hertz, a shark is able to distinguish sound signals.

43. The white shark has the best hearing.

44. Sharks are able to detect changes in water temperature thanks to sensitive skin receptors.

45. Among the possible threats to humans in the water, the shark is the last on the list.

46. It is known that the same person was attacked twice by sharks.

47. Every year, sharks make up to ten attacks on ships.

48. Sharks, attacking ships, often get stuck in them.

49. Florida’s New Smyrna Beach is the place where most shark attacks have been recorded.

50. The shark often attacks inedible objects that impede its movement.

51. The shark uses a special system to warn people about an attack.

52. Predators often attack the male half of the population.

53. A dressed person in the water attracts the attention of a shark more than an undressed one.

54. In 1873, the white shark received its official name.

55. Juvenile white shark feeds exclusively on fish.

56. At the age of 15, the white predator reaches sexual maturity.

57. The killer whale often preys on the white shark.

58. The great white shark closes its eyes at the last moment of the attack.

59. More than 10 meters in length reached the largest sharks caught.

60. Young predators survive on their own without the support of their parents.

61. About 47% of all shark attacks end successfully.

62. Expectations and many hours of tracking down the prey are part of the shark’s hunting strategy.

63. In one year, on average, a white shark eats up to 11 tons of food.

64. A great white shark can live without food for three whole months.

65. Often in captivity, the shark refuses to eat.

66. The “scavenger” of the ocean is called the tiger shark.

67. Powder kegs and cannonballs were found in the stomach of a tiger shark.

68. Compared to bull skin, tiger shark skin is 10 times stronger.

69. A tiger shark is considered a nocturnal predator.

70. A bull shark can live in fresh waters.

71. About half of all attacks on humans are carried out by bull sharks.

72. In India, the dead are thrown into the water with voracious bull sharks.

73. The bull shark, which can eat its own insides, is considered an almost immortal predator.

74. The largest amount of testosterone is produced in the bull shark.

75. Only in the back row do new teeth grow in a bull shark.

76. The maximum length of a shark’s teeth is 18 cm.

77. Up to 15,000 pieces can be the number of teeth in a shark.

78. A shark renews up to 24,000 of its teeth in one decade of life.

79. Only 6 mm is the size of the teeth of the whale shark.

80. About 5 cm is the length of the white shark teeth.

81. The only bone tissue in the body of a shark is the teeth.

82. Shark can determine the fat content of the victim with the help of teeth.

83. Each type of shark has its own shape of teeth.

84. A shark jumps up to three meters in the water while hunting.

85. The fox shark is distinguished by an unusual way of hunting.

86. The wolf is the terrestrial brother of the shark.

87. The gray shark hunts in an original way.

88. A dolphin can attack a shark to protect its offspring.

89. The tiger shark has characteristic teeth and a very large mouth.

90. Large crocodiles are among the shark’s enemies.

91. A shark can hunt a whale.

92. Sperm whales and porpoises can attack a shark.

93. The shark attacks only obviously weak opponents.

94. The whale shark is the largest species.

95. About 15 tons is the weight of the largest shark.

96. The whale shark lays its eggs in the shape of a rectangle.

97. About 100 kg on average weighs a baby whale shark.

98. A female whale shark can carry 300 new embryos at the same time.

99. About 200 kg of plankton is eaten daily by a whale shark.

100. The speed of the whale shark often does not exceed 5 km/h.

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