Importance of Sea Turtles to Humans

Sea turtles have been living on this planet named Earth for more than 100 million years and they have travelled throughout the oceans of the world. They are one of the oldest species living on the earth. Their body structure is so much well designed that they have even survived the extinction which the dinosaurs failed to survive. But now human beings have become the greatest threat for the survival of this mighty creature. We have destroyed the harmony of nature and environment in such a way that sea turtles who have survived great extinctions are now on the brink of getting extinct. We can learn about the present condition of the earth’s climate and environment by observing the present condition of the sea turtles.

Sea turtles are of great economic value. They are the assets of those countries who have them in their territory. Sea beaches are popular tourists spot. Every year lots of people travel throughout the beaches of the world. And the beauty of the sea beaches is its living beings. Without corals, fishes, turtles and other estuarine animals, sea beaches lose its beauty. And to keep the ecosystem of the sea working in a proper way, all living beings should be conserved.

Green sea turtles are usually herbivorous in nature. They eat sea weds and keep them short which helps to maintain the quality of the sea bed. Sea grass also needed to be cut short like lawn grass for its better growth. Sea beds provide the ground for breeding for many valuable sea animals like crustaceans, fish, shellfishes etc. If turtles get extinct, health of the sea bed will be deteriorated and sea grass will decline. As a result, animals living on grass will be lost and this will affect other big animals who live on small herbivorous animals. Eventually whole ecosystem will collapse resulting in the destruction of the living beings of the sea which is the source of beauty of the sea beaches. So tourists would not come to travel sea beaches and the countries whose economies depend on tourism will suffer in the long run.

Sea beaches and dune system can not hold nutrition. So vegetation does not grow well in dunes and in beaches it does not grow at all. Sea turtles nest and lay eggs on beaches. Each turtle lays almost 100 eggs each season. Not every egg would hatch and not each of the hatchlings would be able to come out of the eggs. All these unhatched eggs and hatchlings who do not become successful in coming out of the nest and make the way to the sea are the source of nutrition in the beaches and dunes.

The more the nutrition the more vegetation grows in dunes. And as more vegetation grows, ecosystem of the beaches and dunes works properly. The vegetation also grabs the sands firmly in the beaches and prevents from being eroded. This saves the beauty of the sea beach. As the number of sea turtles is decreasing day by day, nutrition sources of dunes and beaches are also decreasing as a consequence. This will lead to the failure of the whole ecosystem and as a result the beach will lose its appeal to the tourists which will affect the economy of these countries severely.

Sea turtles have historical importance too. They were the symbol of aristocracy and delicacy in the ancient time. In China and Japan tortoise shell were used as a decorative ornament. They used to make it from carapace scutes of tortoise shell. Sea turtle scutes were processed by ancient Greeks and Romans to make components like brush and combs. Aristocrat class people used these tortoise produced components.

Peru’s ancient inhabits Moche used to worship the sea and living beings of the sea. Sea turtles have often been highlighted on their arts.

Mexican people harvest sea turtles for food and boot. In many areas of the world coastal people depend on turtles for the source of protein. Their skin is used for making shoes and leather bags in many areas of the world. They also protect humans from the attack of deadly box jellyfish by eating them.

We can see that the world is becoming a hostile place for sea turtles. It is a clear warning to us that it might become harder for us to survive too. If we learn from the mistakes which we have made and pledge to make things right to save sea turtles from getting extinct, we will be saving ourselves too.

Locomotion of Animals

The word “locomotion” means “moving from place to place”. It comes from two Latin words: “locus”, meaning “place” and “motio” meaning “movement”. Animals can move from place to place in water, in air, or on land. Such movement does require work and their bodies must be lifted or moved forward or both.

Even humans can notice this easily. When you walk, you feel the weight of your body. As you lift each foot, you work against the downward pull of gravity. When you swim, the water supports your weight almost entirely. The downward pull of gravity is balanced by the upward lift of the surrounding water. However, you will have to work to push through the water as it resists your moving body. On land in, air resists your movement very little. You can even hardly notice the resistance. Therefore, animals that live in water work mainly to overcome the resistance of their surroundings. Animals that live out of water work mainly to overcome the pull of gravity. Locomotion is naturally very different in air and in water.

A fast-swimming fish, such as a mackerel, has an ideal shape for moving rapidly through water. The body tapers at the front and tail. The shape meets very little resistance from surrounding water since water streams smoothly over the surface of the body. It is also the shape of large sea mammals such as whales and dolphins. This is the shape men have chosen to base the submarine design on. The streamlined shape is necessary for rapid movement in water because it gives the much needed stiffening and power.

The force of the forward push depends on the size, shape and slant of the tailfin while the animal’s speed through the water is determined by its body size. A dolphin 6 feet long can easily swim at 20 mph. Its body shape is streamlined like that of a fast-swimming fish, but its body and tail speak up and down rather than side to side. The surface of a dolphin’s body does meet some resistance from the water and this is why huge whales about 100 feet long swim no faster than the smaller dolphins. Except when the animal is attacking its spray or escaping an enemy, to swim at high speeds demands more effort than the body can afford.

Others sea animals move through water much more slowly. Worms and snails glide along the bottom while turtles and other animals paddle. Jellyfishes move by some sort of jet propulsion. The squid, octopus and the clam swim by somewhat the same method as well.

On land most kinds of animals move from place to place a means of legs. Legs work against the pull of gravity by lifting and supporting the weight of the body to carry it forward. For rapid locomotion over the ground, a few pairs of longer legs seem better than lots of short legs. A spider can move across the table faster than a millipede can and a mouse can move faster than a spider. The fewer and longer the legs are, however, the better the body must be balanced. In an insect, the body must be carefully balanced so all its legs support the middle part of the body. An insect moves only three legs at a time because the other three legs are used for support. And an insect has its weight equal in both the front and behind of the body. Although this is good for balance, this arrangement is not as good for fast local motion as in vertebrates.

Four legs support most land vertebrates and move it from place to place. In some animals like the salamander, the legs are at the sides so the animal wriggles like a fish. When standing, some vertebrates place their body weight on their front legs and some place it on their hind legs. Others also place it evenly on both pairs of legs. In order not to fall down when walking, a four-legged animal must always have the other 3 feet on the ground. No foot is lifted off the ground unless the center of the body weight is spread over the other 3 feet. For instance, if movement begins with the right front leg, the left rear leg steps next. Then the left front leg moves, followed by the right rear leg. This pattern is the same for a turtle, dog, or a human infant on all fours. By walking this way, a four-legged animal can stop suddenly at any moment without falling down

SeaWorld San Antonio Discount Tickets, Passes, Rides and Animals: A Guide at What This Park Offers

There is always something exciting going on at SeaWorld San Antonio. Whether you live in Texas or plan on visiting there, you need to visit this park and oceanarium at least once this year. It’s one of the biggest reasons why tourism in San Antonio has increased significantly over the past decade. Thousands of people flock to this 250-acre park everyday to go on rides, see sharks and dolphins, watch live shows, and so forth.

Discount Tickets and Passes

Before you get there, you need to shop online for some tickets. Ordering them in advance is your best option. You will find single day discount tickets, low prices on annual passes, discount membership options, and more. You can also find low prices on SeaWorld and Aquatica combo tickets. Be sure to order your tickets directly from the company itself.

Fun passes can be a good choice for Texas residents and non-residents alike. They are available at a discount price – usually no more than the price of a regular single day pass – yet they are good for return visits. Even if you will only get a chance to visit twice this year, it’s still a cheaper alternative than buying two single day passes.

Attractions to Check Out

There are so many fun things to do for every type of visitor: those interested in sea animals, thrill seekers, kids, etc. If you’re interested in learning more about the animals, you might want to check out the killer whales area and the shark aquarium. Where else would you be able to see monsters of the sea if not at SeaWorld? The San Antonio park is home to creatures ranging from killer whales to penguins.

The best way to learn about them is by participating in one of the animal interaction programs. The Grand Adventure in particular is worthwhile. You can learn about what goes on at the park at all hours of the day and night. You can put on a wet suit and enter the water to interact with the animals yourself.

If you’re interested in seeing the animals perform, you can check out the Shamu Rocks show. Majestic killer whales perform in a spectacle of digital media and lights. It’s a fun show that you and your family don’t want to miss out on.

As for the rides, you might want to go on the Great White. This 360-degree ride offers flips, breathtaking loops, curves, and corkscrews. You’ll race along at nearly 50 miles per hour on a floorless coaster.

Overall, there are hundreds of activities that you and your family can enjoy. For this reason, one visit simply isn’t enough. If you can, get some annual passes or fun passes and visit at least two or three times.