Today our article will be about a very ancient creatures of the animal world that lived before dinosaurs and sharks. So there you go.
• At the moment the science there are about 350 species of sharks, but scientists believe that there are unexplored species.
• The size of sharks vary greatly. The smallest known shark is the dwarf shark glowing. It has a size
no more human hands. The greatest number of sharks include a large whale it often exceeds 10 meters in length. There are reports of specimens 18 and 20 meters. Despite their enormous size, they feed only on plankton and small crustaceans.
• The shark is a fish, moreover it has no bones in his body. The entire skeleton of sharks consists of cartilage.
• In order to breathe, a shark must constantly swim. Continue reading
We continue to publish messages to students 4 “A” class. Today, under the heading the Corrs we offer to Your attention a story about the inhabitants of the red sea, which has prepared us for Khrebtova Natasha. Natasha as though he were about to go on a trip and that it went well, learned the most dangerous inhabitants of the red sea.
Shark – the largest and most dangerous predator of the red sea, this sea has about 30 shark species, 2nd most dangerous is the tiger shark that attacks people and long-winged shark. Some argue that even there white shark. the most dangerous shark in the world, but evidence of this until no. Can someone put these rumors to scare people. But no need to fear, these sharks are only in the open sea, and near the shores they don’t float.
Stingrays are inhabitants of the red sea they are of two types. electric scat and scat hvostokol. The first type has a property to let an electric discharge, it is dangerous because it is painful and possible pareticheski shock. And the second type at the end of the tail has a spike with poison. This injection very painful and the wound is healing long after the injection. Continue reading
I was introduced to reader’s letter “Change” V. Karataeva from Voronezh. He writes to the editor: “. In the fall I was vacationing on the black sea coast. Ya big fan of fishing, made friends there with an old fisherman. Once he told me, among other things, that in the Black sea were the whales. But he no details about it does not know. After returning home, I mentioned this fact to my friends in the shop, and I was scoffed at. I ask the editors to help me figure out if there was an old fisherman.”
I remembered that I had read something similar in one of the old magazines.
Indeed, reviewing the magazine “Nature and hunting”, who edited a well-known ichthyologist L. P. Sabaneyev, I found in the may book for 1880 the note, “the Capture of a whale in the Black sea”.
Here are some quotes from it: “In “Novorossiysk Telegraph” reported from Batum the following details of the capture of a whale in the Black sea. Continue reading