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
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
Fish not only enliven the garden pond and eat the mosquito larvae and other insects. It should be noted that their presence does not affect the purity of the pond.
When choosing a fish species should be guided by the size of the reservoir.
For example, koi need space not less than 7.5 m 2. In addition, they are harmful to the plants-oxygenators.
Requires less space Golden Orff, she’s had enough of the pond with an area of 3.5 m 2. This beige-pink fish, graceful and active. Maximum its body length 50 cm, but it rarely reaches such dimensions.
For a very small pond like a goldfish or shubunkin.
The first one has a dark Golden color. Its varieties differ elongated waving tail fin. Continue reading