The shark with the Latin name is Galeocerdo cuvier biologists determined in 1822, and from that time she was nicknamed the tiger shark. These sharks got their name due to the dark stripes and spots that cover the body of the “minors” of this species. Also in this title to show all the cruelty that is inherent in the shark, which is the second most deadly shark after the great white.
It should be noted that the tiger shark is a part of the family Carcharhinidae Requiem sharks. Despite its reputation, this predator also got another nickname: “sea scavenger” or “scavenger of the sea”.
It turns out that the tiger shark can eat anything from sea turtles and seals, which constitute the bulk of its diet, to more exotic kinds of “food” – rubber tires, beer bottles, nails, a driver’s license, clothes, explosives, crocodile heads, cats, pigs, and even pens, with all their inhabitants (there were precedents). In Australia, for example, was caught tiger shark with a whole and intact head of the horse in the stomach!
Why the tiger shark is called tiger?
So who are these deadly and eternally hungry predators? To begin with, what is this species different from other sharks? Well, as we already mentioned, for shark’s distinctive “tiger” colour, which is most noticeable in young specimens. Tiger sharks have a white or yellowish belly, the rest of the body is painted in cool colors range from bluish-green to dark gray.
At birth these predators have a length of from 50 to 70 centimeters. They grow much larger. An adult tiger shark can reach 4 meters in length and weighing around 680 pounds. Some individuals can grow up to 5 meters and weight gain up to 900 pounds. Continue reading
There are freshwater and marine fish. How do they live in the water? They breathe the oxygen dissolved in it.
Every time you open your mouth, the fish absorbs the water. The oxygen dissolved in the water absorbed inside the body of the fish straight into the bloodstream. The wastewater is then discharged through the gills, usually located on the sides of the fish’s body, behind the head.
Mudskipper is a fish with very interesting habits. There are jumpers in the Eastern Atlantic, Indian and West Pacific ocean. It lives most often in the quiet bays near river mouths. This remarkable fish that at low tide remains on land and, using fins and a special breast suction Cup, can climb trees to a height of more human growth: here it preys on insects.
In fresh water rivers and lakes inhabited by many species of fish. Freshwater fish feed on different food. Some eat algae, other aquatic insects and mollusks. Some fish eat other fish; they are real predators.
In certain types of freshwater fish are found only in one river or lake, others dwell in many places. Sometimes fish eggs is transferred to a new place, glued to the feet of waterfowl, and sometimes fish can move people. Some fish themselves swim in other rivers. When the salmon is four years old, he leaves the river and goes to sea.Having lived in the sea and two more years, he returns to lay her eggs. Many salmon return to their native river, but some moved to other rivers. Continue reading
The first work – bonding of sump
The Assembly of the aquarium I started with SAMP. Wanted to kill not just two but several birds with one stone. First, saving money, as the volume of cans was not small, and making the most of your own hands, you can save additional money on high quality equipment and aquatic organisms. Secondly, I wanted to check if I am able to do everything myself. Thirdly, and if I can, then: how will be glued is large and heavy aquarium. This should be checked. So took the glass thickness 8 mm – for the sake of experiment.
Looking glass led to the website of Crystal that cut glass on the laser machine and cut the edge. But the most interesting is the price, it was similar to an ordinary glass cutter. In General, called the office, learned what they need to know for the order, I printed your schematic and on the way to work drove to their office. Custom designed for 40 minutes we discussed all the details thoroughly, talked on related topics. Issue price turned out 2 300 – 2 400 RUB (or rather not remember). After 4 days I called and was told that you can take the glass. Stunned! Everything was Packed in thick cardboard, and if packable 2-3 leaves, all padded with additional cardboard. Sizes are met perfectly…
Buy aquarium sealant and masking tape took place without problems in the near Chkalovsk. And then began the most interesting – we had all the mess and neatly glued together. Wanted the clearances were exactly 1 mm. this value was calculated from all the walls and internal partitions. Two nights was meditating on improvised material – it was necessary to collect a frame (frame), which would allow appending to withstand the required geometry. Continue reading