marine

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Dangerous marine animals

The immeasurable diversity of nature on our planet: scientists consider to 3500 species of mammals and more than 850 000 species of insects. Despite the fact that already for many centuries is explored flora and fauna, and annually published reports of discoveries of new species, which find even in long inhabited and explored areas. So, in the early 30-ies of our century was known to 800 thousand species of butterflies, and by 1942 he already 900 thousand species. Even less studied is the life in the oceans, which often make sensational discoveries.

The existence in the seas and oceans are dangerous animals the people knew even in ancient times, although along with very real views were widespread tales of fantastic sea monsters. It was known about the danger of injections of some animals, on the toxicity of some marine animals by eating them for food and, of course, about large aggressive fish – the shark. Currently published a lot of papers devoted to the description of poisoning from the ingestion of marine animals in different parts of the World ocean. So, only in 50-ies of our century from such poisoning suffered tysjacheletij. According to the researchers, only poisonous fish there are about 500 species, most of which live in the salty waters.

By climatic and geographical basis distinguish polar, Northern, temperate, subtropical and tropical zones. The majority of our population lives in Northern and moderate climatic zones and therefore are not familiar with the fauna and flora of the tropics. Year-round abundance of warmth in them contributes to the rapid development of wildlife. So, in the Amazon region, has about 15 thousand different species of animals. Continue reading

Beijing zoo and aquarium

Beijing zoo is one of the most visited places in China. This is a beautiful zoo in the Western part of the country’s capital, Beijing. The popularity he gained as a Park the Western Suburbs, when he founded people’s Republic of China. It should be noted that the area presents zoo has the appearance of a classical Chinese garden.

This is the only place you can see a unique combination of natural thickets of plants, together with artificial vegetation of flowers and a small stream, dense groves of trees, Lotus ponds, stretches of meadows, small hills that littered the enclosures and pavilions. Basically, in this zoo, you can see wild and rare animals. Among the animals of the zoo, you can select a giant Panda, Sichuan Golden monkey Korotkova, polar bears from the North pole, Manchurian tigers, huge sea turtles, kangaroos from Australia, Tibetan yaks and many other animals.

It is worth noting that the Beijing zoo is also a center for Zoological research in the cultivation and study of fairly rare animals from different parts of the world. Each year, this wonderful zoo is visited by a huge number of tourists. The structure of the Beijing zoo covers a very large area (about fifty thousand square meters), with a pavilion including elephants, monkeys, aviary, cages of lions and tigers, pandas pavilion and much more. Continue reading

Sea secrets

12. What is the jellyfish, common in the Black and Azov seas, burning like nettles? ( Kornerot, or Hrizostom .)

13. What Medusa has much more victims than any shark? ( Sea wasp – Hironex from the squad Fleckeri Jellyfish. Occurs in the Great Barrier reef of Australia. Bell diameter up to 4,5 cm Usually “stung” her people are killed in a few minutes. The sea wasp venom affects the nervous system, leads to paralysis of the heart.

15. In some cases, predatory polychaetes dangerous to humans? ( Chitinous hook, with a serrated inner edge of the jaws of carnivorous polychaetes associated with venomous glands. Polychaetes may also have parapodia with poisonous bristles. Suffer from them most often fishermen, brought out the trawl catch. At a strong poisoning there is a sharp pain and swelling in the arms, appear headache, nausea.

16. In any case, some edible bivalves can be poisonous? ( If their tissues are developing certain bacteria or accumulate toxic substances.

17. What mollusk is called the “blue death”? ( Small (20 cm, 100 g) Hapalochaena octopus maculosa, which lives in the coastal areas of the tropical zone of the Pacific and Indian oceans. In the excited state it is covered with bright blue spots. Salivary glands of octopus have venom neurotoxins acting simultaneously on the nervous and muscular system. The bite of this clam privided paralysis of the respiratory muscles . Continue reading

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