1. Sharks are found in all the oceans of the planet.
3. Most shark attacks on humans are recorded in Australia, the Americas.
4. The largest shark that has ever lived on earth is the megalodon, now extinct. Judging by the fossil remains, megalodons reached a length of 30 meters.
5. In Greenland, there are sharks with parasites that can glow in their eyes. According to scientists, they help sharks to attract prey.
6. The white shark is a formidable predator, however, killer whales are happy to hunt it.
7. According to researchers, sharks are more likely to attack humans: tiger, shark - hammer, mako, white-fin, bovine, sand, blue, lemon and sea fox.
8. Sharks are sea tramps. In search of prey, they randomly wander along ocean roads. Sometimes they are tied behind a vessel from which kitchen waste is generously thrown into the water and can accompany it, for example, from Lisbon to Hong Kong.
9. The smallest shark is a deep-sea small shark, it is only 15-17 centimeters long, and the largest shark reaches 20 meters, it is a whale shark.
10. On average, a shark lives 20-30 years, but there are some species of sharks, for example, spotted spiny, whose age can reach 100 years.
11. A bull shark can live in fresh water.
12. A hammerhead shark can survey a space of 360 degrees.
13. Some sharks are viviparous, that is, they don’t want to play, but sharks appear immediately. This makes them unlike other fish.
14. Sharks appeared on earth 200 million years earlier than dinosaurs.
15. On land, the ostrich lays the largest eggs. And in the water - a whale shark. The diameter of her egg is about 35 cm.
16. A tiger shark, clenching its jaws, can easily split the shell of a large turtle.
17. Some species of sharks can be called very fast fish - they reach speeds of up to 50 km / h.
18. The largest of the ever caught white sharks weighed about 3.5 tons, and in length reached a dozen meters.
19. In captivity, white sharks do not live, refusing food and preferring starvation to imprisonment.
20. During the hunt, a white shark can jump out of the water to a height of up to three meters.
Greenland polar shark
21. The Greenland polar shark readily hunts for gulls, jumping out of the water and catching gapeous birds.
22. The longest-lived shark is a polar shark that lives in the cold waters near Antarctica. She can live up to 200 years.
23. Occasionally, white sharks swim even in the Black Sea.
24. The closest relative of sharks from a biological point of view is the ramp.
25. Sharks do not feel pain at all. The body of this fish produces a substance that blocks pain.
26. Lemon shark is quite tame. But you must handle these fish with caution - they are very vindictive, oddly enough.
27. Most species of sharks are viviparous. And in one litter, up to 48 cubs can be born. The record holder is a whale shark, which can have several hundred sharks.
28. The electromagnetic field of the Earth serves sharks as a “compass”.
29. The largest shark is the whale, with the smallest teeth, only about 6 millimeters long.
30. Some species of sharks live at a depth of more than 3 kilometers.
31. The fox shark is distinguished by an unusual way of hunting.
32. In New Zealand there is a species of shark called Swell Shark. This shark can bark like a dog.
33. All sharks are predators with sharp teeth, but there are three species of sharks that feed only on plankton - whale, giant and large-mouthed.
34. Sharks have more than 40 rows of teeth. If she loses or breaks a tooth, then it is restored in less than a day. A shark can change more than 30,000 teeth in its lifetime.
35. For three months, a white shark can live without food.