Sharks are predator fish, dangerous and aggressive inhabitants of the ocean, the oldest known animals. So it is commonly believed,

The question of how the sharks sleep, for sure, someone will seem at least a bit strange. After all, many

Far away from the earth, in the endless ocean waters warmed by the rays of the sun, groups of huge,

The size of a typical adult specimen of a white shark is 4-4.9 meters with a mass of 680-1100 kg.

The skeleton of a shark differs markedly from the skeleton of teleost fishes – there are no bones in it

As a rule, the teeth of each shark are lined in 3-20 rows on each jaw and in each row

Shark is not a mammal.The name “mammal” speaks for itself. Those animals that feed their cubs with milk are called

Great white shark can swim 40 km / h, so fond of the filmmakers, shooting it as a bloodthirsty and

Usually sharks swim quite slowly, at a speed of about 8 km / h. but during an attack they can

It has long been known that sharks prefer to avoid the dolphin society. They swim away, barely seeing the flock

Scientific name of crow is Corvus corax. Crows are sinister birds, in the folklore of many peoples of the world

Crows are the most intelligence birds. Special attention should be paid to the New Caledonian crows. His favorite food is

A group(flock) of crows is called “murder”. Crows are exemplary family birds. They create a couple for a lifetime. Partners hunt together,

There are no fundamental differences between raven and crow. Both species of birds belong to the same genus Crows of