Emerald brohis was introduced to Europe in the nineteenth century from Peru. In nature, these fish are found in waters of Ecuador, Peru and the Amazon headwaters. It is the oldest member of this species of fish living in home aquariums. These fish have become very popular among aquarists because of their activity, they exhibit in the aquarium, and the adaptability under any conditions. Fish have a size of up to 8.5 cm long.
Emerald brohis has a large head with relatively high trunk that gradually decreases to the tail unit. The flat sides of the fish are covered with two rows of hard plates that perform a protective function against the encroachments of predatory fish. Bladed tail unit. Boca fish have a greenish brilliant color, a bright yellow belly and back is pale brown with a slight tinge of green. Unlike the male has a tapered female dorsal fin, except that it is smaller in size and its abdomen less rounded than in females.
As with all types of catfish brohisy are nocturnal. They are very mobile and swim in small groups, so it is desirable to keep their flock of several fish, with a greater proportion of males. Fish swim in a substantially lower water layer, occasionally rising to the surface in order to swallow a bit of air. Brohisov can be kept in community tank with the same peace-loving fish, as they are.
To keep the aquarium for a spacious capacity of 100 liters, densely planted with plants, including floating. There must be a large number of shelters in the form of snags, rocks and caves. As the soil is desirable to use sand or gravel wiped. In the aquarium should not be any sharp objects, as Fish digging can damage his mouth. Continue reading
Dangerous animals BLACK SEA
Black Sea: it has long drawn people to him. Every year on the “shores of Tauris” rush to hundreds of thousands of vacationers and tourists, absorbed only one purpose: to quickly plunge into the gentle waves of the Black Sea affable. But unfortunately, not all the guests of our peninsula, and some Crimeans know that the sea is not always hospitable and affectionate. Often, careless bather in the water could pose trouble, not only related to dangerous storm surges, pitfalls, great depths, but also with some representatives of marine fauna.
Very often, a few meters from the shore, the fishermen on the hook catches scary-looking, brown-brown, 10 – 20 cm long fish. All of her head, with large dull eyes, covered with thorns and spines, and spotted back crowns a prickly fin. This famous seaside ruff or scorpion fish. He lives usually on rocky ground, scoring under large rocks and in crevices of the rocks, where waiting for prey – a small fish. Take up the ruff is unsafe, as the spinal cord and its poisonous spines gill, which brings about a shot, though short-lived, but quite painful.
Sometimes on a deserted shallow water with a sandy bottom, you can find a large (up to six meters) fish, having flattened, rhomboid
shaped body, ending a long thin tail. It stingrays or sea cat. At the end of his tail bone spike is white with lots of small nicks on the edges blurry poisonous slime. If you accidentally step on peacefully in the water lying on the sand slope, he can hit the hapless swimmer up your spine than the causes ragged, long non-healing wounds. The victim feels a lot of pain, and then may start vomiting, heart palpitations, muscle paralysis, and sometimes death. Of interest is one of the first literary mention of stingrays off the coast of the Crimea, represented by well-known traveler AP Sumarokov and referring to the 1803 “: From the notes of marine animals sea worthy males armed with tail three inches on either side of the island of small and cunning piloyu, which they are approaching people to cause them deep wounds to the bone, causing several soldiers came recently retired mutilated. “. Continue reading
Whales – the inhabitants of the depths of the ocean
Whales, the largest animals that live in the ocean, including all of the largest creatures that ever lived. In this group of giant animals, sperm whales set a record: they are the largest hunters with their teeth.
Sperm whales are very strong Predators. They are immersed in cold water in the black depths of the ocean, hunting squid – including the giant squid.
They are also a rich and varied social life. They live in family groups and support each other.
Recent studies suggest that the relationship of sperm whales in the family group just as important for them as our own.
The female sperm whales are likely able to detect sperm whales and their families, social nakoplivat knowledge and recall their interaction history for a very long period of separation.
His research, published in the journal “animal behavior, shows that sperm whales have a specific preference, in the same way we might Edge separation – is a favorite cousin or aunt.
These preferences remain constant for man years, it is assumed that whales recall their distant friends and family, despite the fact that they spend most of their lives apart. Continue reading