A photo from open sources
Sharks are amazing and at the same time quite strange. creatures. Despite the fact that they are much older than dinosaurs, we Unfortunately, we know very little about them. Your attention – eight the most interesting facts about these mysterious representatives of the animal of the world. 1. It turns out that a shark can use its tail as a whip in order to stun his victim. 2. Female sharks can reproduce without the help of males, that is, they are capable, in Unlike mammals, to external fertilization. For example, in 2001, a hammerhead shark at a zoo in Nebraska, without pre-mating with the male gave birth to a healthy baby. 3. To disguise themselves in the depths of the ocean, some sharks produce their own glow, as a result of which they do not discard the shadows. So, for example, a black prickly shark (of the katran family), masquerading from predators, not only highlights its stomach, but also spiky spikes. 4. The enamel of shark teeth is fluorinated, which makes them resistant to destructive acid generated by vital activity of bacteria. And in combination with the fact that throughout the shark of life to replace the lost teeth grow new, you can safely say that sharks are distinguished by excellent oral health cavities. 5. The Greenland shark is one of the slowest moving fish that have ever existed on our planet. 6. By the reason that males like to bite during mating partner, the female shark skin is much thicker and stronger than the male skin. 7. Pacific shark can attack with bites not only other sharks, but also the largest and most formidable of their family – the white shark. Besides Moreover, this bully often spoils military property, biting submarine cables and sheathing. 8. One of the rarest species sharks – “pelagic large-mouthed shark”, can reach in length more than 5 meters. However, this animal is not a threat to humans represents, because it prefers to eat plankton.
Translation by Sergey Vasilenkov
Sharks
