Wednesday, May 12, 2010

Megalodon


What on earth is a megalodon? Well, first off its not on earth anymore, and secondly it was a massive prehistoric shark that was 40 feet or longer. Some even say that it was 50-100 feet long. Scientist of course do not know for sure how long it was. Only hypothesis can be made judging from fossilized teeth and very few fossilized vertebra found. Because these teeth look very similar to that of a great white, it is thought that a megaldon was a great white shark, but 3 times bigger! These sharks have thought to eat whales, and because they are cold blooded they do not have to eat as much as humans do. Humans eat just a little over 2% of their body weight. Megalodon could open their mouths 6 feet wide and 7 feet high. It is argued that sharks lived 25 to 1.6 million years ago, and is still debated when the time of their extinction. So the question is, why blog about a extinct shark? To make a point. Sharks extinction has already happened and the whole world needs to open their eyes to see the fact that sharks are indeed disappearing. We all need to help protect these animals and protect them from facing the same fate as the meagalodon.

Tiger Sharks


Since when do tigers swim? Tiger sharks are a very intimidating shark. Tiger sharks get their name from the vertical strips found on their body's. Tiger shark rank up at the top with feared sharks, sitting next to the great white. Tigers have earned the name as man eaters, and swimming trash cans. Tiger sharks are different from other sharks because they have a near completely discerning palate and are not likely to swim away after attacking a human. Tiger sharks have very strong jaws and very sharp teeth that help crack turtle shells and clam shells. One tiger is famed for having a car tire inside its belly. Tigers will eat anything. Tigers are found in tropical waters and sub-tropical waters all across the globe. Large Tigers can grow to 20-25 feet and way more than 1900 pounds. These sharks are hunted for their fins, teeth, skin, and liver. Their liver contains high levels of vitamin A, which is produced into vitamin oil. Tiger sharks also unfortunately have a low reproduction rate, which makes shark fishing all the more dangerous for tigers. We really need to help preserve these dominate sharks, as well as all other sharks.

Monday, May 10, 2010

The GREAT White.


What is one of the most well known sharks? Say hello to the great white. These are truly massive beasts. Sharks have dated all the way back 350 million years ago. Great white sharks can be found in warmer waters, most commonly spotted in Australia and California. The famous jumping white sharks are found off the coast of Africa, where they attack their prey from the bottom and in result fly out of the air. Great white sharks love to eat seals and sometimes even small toothed whales, which is why so many surfers are mistaken for a seal. Great white sharks hold the title of being the largest predatory marine animal. Great whites are between 12-16 feet long and can grow up to 19-21 feet. Great whites are so feared that the are often misunderstood. More people are killed by dogs in the U.S than great whites, also you are more likely to get stung by a bee than attacked by a shark. Theses great aquatic animals are taking heavy losses. It is very clear that numbers have decreased over the years, and these animals have been placed under the endangered species list in California. While these animals may ignite fear, we must be careful of ridding the world of these great animals.