5 most dangerous fish in the world.pptx
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5 MOST DANGEROUS FISH IN THE WORLD Kir'yanova Oksana 2 т2
1. Borodavchatka or fish - stone. The most venomous fish in the world. Has dimensions of 35 - 50 cm, lives mainly in the southern seas and oceans, at the bottom near the coral reefs. She meets and shallows. This amazing fish is well camouflaged under stones, waiting for their prey. And it feeds on small fish, shrimp and shellfish. The most dangerous thing in the fish - it is the strongest poison. Fish on the back has twelve spines, which are equipped with venom glands.
If you accidentally step on the fish, even in the shoe, its strong sharp spikes, easily punctured sole and vopyutsya up man. Venom toxin produced by the fish, causing severe pain, paralysis and death of tissue in its deep penetration. By ingestion of poison in a large blood vessel, death can occur within two hours.
2. White shark. The most dangerous of all shark species. Dwells in all the oceans of our planet. Its maximum length may be greater than 7 meters and weighs more than 3 tons. Shark has a protective coloration, which helps it to remain unnoticed. Predator has about three thousand triangular teeth which, like other sharks arranged in three rows.
Bite force is 150 kg per 1 cm White Shark is omnivorous, and do not hesitate virtually no nothing, but her favorite food it's fat extraction, eg sea lions, seals or seals.
3. Piranha. "Toothy devil" in the language of South American Indians. The most dangerous freshwater fish in the world. No less dangerous than the white shark, although its average size of 20 - 30 cm Her sharp, triangular, razor teeth - are a danger to all living things that may be in the water.
Attacking their prey in large packs, they are in a very short time, leave her alone on bone. Strong jaws of this fish can eat human finger. Piranha attract splash water and blood that gets into the water. They are also able to devour, and their relatives.
4. Goliath Tiger Fish. Also one of the most dangerous predators of freshwater on the planet. Lives in rivers and lakes in Africa. The fish can reach 1. 5 meters in length and weigh up to 70 kg. Slave received its name for its color, resembling tiger. Goliath has big teeth like fangs.
Its structure allows this predator jaws very widely open mouth, allowing swallow large prey. Tiger fish is very strong, it can develop a good speed and swim against the current, such as turbulent river Congo. There are cases when the fish attacked not only by humans but also crocodiles.
5. Candiru catfish. Fish length not exceeding 15 cm, it has similarities with eel and nearly transparent. Their victims this amazing fish is ammonia, which is isolated water fish during respiration. Swim them to the gills, the parasite produces spiky growths that allow him to stay on the victim. Candiru catfish. Lives in rivers of the Amazon. This fish - a parasite that feeds on blood.
Fish bite through a small hole and full of blood, catfish candiru leaves his victim. Worse is the fact that the parasite gets into the human genitals. After all, when you urinate, there is also emission of ammonia, and the smallest specimens may also like to fish, climb into the urethra. And to get them out of there, without surgical intervention, is almost impossible.