Bullfrog Essay

genus genus Rana Catesbeiana (Bullfrog) Essay I was amazed to find proscribed just how antediluvian patriarch frogs are. For 190 million years, the ancestors of modern frogs stool roamed the earth, looking much the identical as they do today. This means that at one time when in that respect was a huge dinosaur eating a plant, there could have been well-nigh type of frog down by its feet. About 3,800 species of frogs and toads have genuine since the dinosaur days. The secret to their success is their amazing adaptability. Frogs have evolved to live in a large variety of climates.They drive out be found just almost eachwhere there is fresh water- on all continents except Antarctica. though they thrive in warm, moist tropical climates, frogs also live in deserts and high on 15,000-foot mountain slopes. They can be so adaptable because they are cold blooded, which means that their body temperature can alter a eagle-eyed with the temperature around them. When temperatures drop, some frogs dig burrows underground or in the mud at the bottom of consortiums. They hibernate in these burrows until spring, perfectly hushed and scarcely breathing.A frogs skin also plays a plumping role in their survival. It is through their skin that they both drink and breathe. Frogs dont take in water they get all the moisture they need through their skin, which moldiness stay moist. If it dries out, oxygen cant pass easily through it and the frog can suffocate. Frog skin secretes mucus that helps keep it moist. Even so, their skin tends to dry out easily, which is why they usually stay near bodies of water. About formerly a week, frogs shed their skin. The process begins with the frog doing a lot of twisting, bending, and reach to loosen the old skin.Then the frog pulls the skin oer its head same(p) a sweater and usually eats it. Two other split of the frog have helped it to survive all these years as well. First, the back(prenominal)er(prenominal) legs of the frog, which enable some frogs to jump twenty times their body length. This would entrust them to quickly get a behavior from whatever predators. A frogs two face up legs have four toes each, while the back legs have five toes each. close aquatic frogs have webbed back feet to help them swim, another way to get away from an enemy. Frogs that live on land tend to have shorter legs for walking and climbing, still are still able to swim in water.The other part of the body that help them survive so prospicient are their big, bulging eyes, as they are able to search in all directions. Frogs large eyes see a wide prototype of colors and also see well in dim light. This not only increases their chances of surviving a predator, but also decreases the ability of their foredate to get away. Since they have such big eyes, they are able to see their own prey and target them for food. It has been found that when a frog sticks out its tongue to catch an insect or other food source, it concisel y closes its eyes.The frog must therefore, know exactly where its target is, and aim, forward the tongue leaves the mouth. The positioning of the eyes, on top of the head, allows a frog to sit in the water with only its eyes and nose above the surface, so they do not have to leave the water for food. Frogs eat almost any live prey they can find, including insects, snails, spiders, and worms, or small fish. Their tongue is long and sticky and takes less than a second to drift out, stick to prey, and roll back into the frogs mouth.Their mating call is sometimes called an advertisement call. It is made by the male in the water and which helps the effeminates to identify with her species. Each species has a diametrical type of mating call. This is unwieldy to decipher around a pond of noisy frogs. When they mate, the male frog climbs onto females back, grasping her with his front legs. As the female lays her eggs, usually into water the male release sperm that fertilizes them. Ther e may be anywhere from one to hundreds or thousands of soft, jelly-covered eggs.The eggs hatch inside three to twenty five days, and few will survive the difficult trip to adulthood. Among most frogs, a tadpole will hatch and shake off the next few years growing into a frog. The changes begin when the hind legs sprout. Soon after, lungs develop and the front legs appear. Meanwhile, the tail gradually shrinks. Just before becoming a frog, the tadpoles gills disappear. The tiny froglet emerges from the water with just a puzzle of a tail, which soon disappears. The observations that I took did little justice to the complexity of Rana Catesbeiana, the bullfrog.Frogs have been living on this Earth for millions of years and have ameliorate their lifestyle throughout that time. The amazement of these creatures is that they can survive well in nature, but can also be house pets for children to play with and check over from. There are myths that have surrounded frogs and superstitions t hat have risen over the years. One that comes to mind is that if you kiss a frog, you will get a wart. Like many superstitions and legends, no one knows for sure where that one came from, but watching these little amphibians, I highly doubt that they could do any harm.