Voracious predator?
Sharks or shark are great predators but of the more than 375 species that exist in the Earth’s oceans, those responsible for attacks on humans are only the white shark, the Sardinian shark or bull shark and the tiger shark (in total there are 12 species that are considered dangerous to humans). Attacks on human beings are rather few and isolated (and usually on surfers). As a curiosity, the capital of the world with the highest number of shark attacks is New Smyrna Beach in Florida (USA).
As an example of a harmless shark, the whale shark’s mouth can be 2 meters wide ; However, such a colossal size only serves to put tiny plankton in its mouth, yes, in quantities commensurate with its morphology.
Do sharks have bones?
The truth is that no. Sharks lack bones and in their absence their skeleton is made up of cartilage. What they do have are a lot of teeth. They can have up to 30,000 teeth in their lifetime.
The ancestor of the shark
The megalodon ( Carcharodon megalodon ) represents an extinct species of shark that lived between approximately 19.8 and 2.6 million years ago. It was the largest shark that ever lived. It could measure up to 20 meters and weigh 100 tons. His sturdy body needed a great deal of food. His favorite prey were whales, dolphins, turtles or seals.
The strength of the shark’s tail
A great white shark can weigh the same as 15 gorillas and the tail of some is not insignificant. The thresher shark ( Alopias pelagicus ), for example, which is barely 3 meters long, has a very effective hunting strategy to get several prey in a single hit. The shark uses its long tail to stun and kill its victims like a whip and with astonishing speed: 24 meters per second.
