Construction and repair of ponds
The depth of the pond determines the slope of the underwater Bank. Is the slope less than 30° . but quite often it is necessary to construct more ponds with…

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Can fish talk?
Many answer this question with a clear "No!" This view is even entrenched in the saying: "like a clam". But is it really? Once scientists have tested new designs of…

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Fish of the red sea
The red sea is a unique tropical sea with a variety in size and beauty the representatives of the underwater world. Its uniqueness lies in the fact that it is…

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coast

Most dangerous animals in the world

Sea wasp

Jellyfish, sea anemones, coral polyps, annelid worms, sea cucumbers, sea urchins, starfish, sponges can “burn” or stabbing of a person in contact with them. The range of consequences — from burning the skin before the heart stops.

The most venomous jellyfish is the sea wasp, lives off the coast of Australia. The venom of this beautiful jellyfish paralyzes the heart muscle, death occurs within 1-3 minutes. It seems to be a normal jellyfish light green in color but very poisonous. Its 60 tentacles, each a little less than 40 cm long, has 5,000 flowing down the stings and venom enough to kill 60 people. Australian fishermen, in whose nets such “fish”, beware to use these networks again – you can easily go to the hospital, so strong poison secreted by jellyfish. Continue reading

Shark fish

Sharks are found in open and coastal ocean waters. These mysterious creatures appeared on Earth 400 million barrels. years ago. Belong to cartilaginous fish. as their skeleton consists of cartilage. Cartilage is durable, and unlike the bones of fish, more flexible and light. They have no swim bladder. Afloat fish holds, thanks to its large but lightweight the liver. Her need to constantly move in order not to drown.

She swims, arching his whole body from side to side. Almost all of them when hunting using the electric field. Sharks capture him with the help of numerous electrical sensors that are on her face.

Many of them, it is not strange, they eat plankton. Plankton is a conglomeration of various microscopic and small organisms. Mainly unicellular plankton contains algae, which absorb solar energy, thereby transforming inorganic substances into organic food. Continue reading

The amazing inhabitants of the underwater world.
Salpa Maggiore is a marine invertebrate that lives in cold seas. It's a harmless creature that feeds on plankton. Their body is not got no color and is completely transparent…

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Predatory fish protects the fish from a mass death
In Lithuanian lakes and rivers in recent times massively dying fish, so look for an answer to the question, what is the reason? Panevezys environmentalists still waiting for the results…

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