The shark is one of the most amazing animals, but the shark is one of the most dangerous predators of the water world. Sharks have a very interesting feature related to their teeth. And, specifically, a shark is a very quick change of teeth. Therefore, there are sharks that change teeth front row, on new on average once in two weeks!
How many teeth do sharks and how they are positioned? One day, to count how many teeth does a whale shark, the scientists caught it and pulled ashore. They were amazed by what they saw. In the mouth of the shark was about 14,000 small teeth that are shaped like igloos. But all of these teeth need to mouth the fish were delayed, and plankton, as whale sharks do not pose to humans no danger. But what about dangerous for people, white or tiger shark? How many teeth does a white shark? The teeth of these predators differ from a whale that have a triangular shape, unlike needle, and they are more wide and long. Continue reading
No one doubts that the Mediterranean sea is one of the most beautiful seas of our planet! Anyone who has ever been lucky enough to see the fabulous beauty of this unique on the Ground water basin, will never forget it. However, according to leading environmental experts, the Mediterranean sea faces a real environmental disaster.
The fact is that for more than a decade a group of environmental scientists from 80 countries were engaged in a thorough study of the flora and fauna of the world ocean. This study claims the title of one of the most detailed and objective in the world. The results of the study the Mediterranean sea is becoming less suitable for life of its inhabitants. Moreover, in comparison with other seas and oceans of our planet, the situation in the Mediterranean is the most critical. These studies were recently published in the open scientific journal PLoS ONE (The Public Library of Science Public library of science). Continue reading