Characteristics Of Reptiles


Find More Characteristics Of Reptiles

Looking for essays on characteristics of reptiles? We have thousands of essays on this topic and more.

characteristics of reptiles American alligator

Alligator mississippiensis is in the family Crocodylidae.  This family has existed since the upper Triassic period, but the modern family members appear in the fossil record as little as 80 million years ago.  There are three subfamilies, Alligatorinae, Crocodylinae, and Gavaialinae.  Some people also include a fourth subfamily, Tomistominae, which contains a single species, the False Gharial.  Alligatorinae includes the American and Chinese alligators and the caimans.  Crocodylinae includes the crocodiles. Gavaialinae contains the gharials (or gavials).  The alligators are unusually tolerant of cold and have been found frozen in ice at the most northern parts of their ranges (Beck).  
PROTECTION STATUS
All of the family Crocodylidae is endangered.  However, the American alligator has undergone a dramatic population resurgence because of human protection.  Restrictions are still in place on capturing alligators from the wild (Beck).  Studies have shown that using hormones such as norethindrone can be used to feminize alligator embryos at the male producing temperature (Lance, 79).  This could lead to a way to help alligators increase in numbers of both sexes as well as help other members of the family Crocodylidae.  Alligators are important ecologically and are dependent on the spatial and temporal patterns of water fluctuations.  Patterns of courtship, mating, nesting, and habitat use are all dependent on marsh water levels.  Alligators are a great study organism to study the adaptations and responses to the seasonal changes to the hydrological conditions in the everglades.  Alligators seem to be able to adjust the height of the nest egg cavity based on the spring water levels, which historically indicated the water levels later in the nesting season.  Water levels also determine the availability of food therefore affecting the patterns of growth and survival.  Alligators are most abundant in central sloughs, which is probably due to recommendations regarding managing hydrological conditions for alligators focused on maintaining alligators in central slough habitats (Mazzotti, 485).
PRIMARY HABITATS
The American alligator is one of the keystone species in the Florida everglades and other marsh systems.  It is the only large, abundant, widespread nonmarine carnivore left in the southeastern United States (Mazzotti, 485).  They are spread as far west as reserves in Texas, and their northern boundary is in South Carolina.
REPRODUCTION
The interesting thing about alligators is the temperature determination of sex.  At 29C all females will be produced.  At 32C all males are produced. Temperatures in-between will produce mixed sets of young.  The lower the temperature the less yolk there is for the young, there fore the young turns out smaller and female (Allsteadt, 76).  It would be the opposite for warmer temperatures.  The female alligator chooses the nest site, which in turn determines the sex of the young.  The sex of the young is determined in the first two-thirds of incubation.  During the final third of incubation the quality of the young is determined.  Snout length, carcass lean dry and lipid mass, and yolk sac lean dry and lipid mass are determined by the final third of the incubation period (Congdon, 497).  These characteristics could affect the vitality of the young in competition after they hatch.  In South Carolina growth rates of alligators were thought to be slower, but it seems that alligators reach sexual maturity at a later age and larger body size than alligators elsewhere.  It is assumed that the delayed breeding of alligators in South Carolina may be related more to social dominance than to growth rates.  It is essential that age and size relations need to be understood better if alligators are to be managed effectively (Wilkinson, 397).
FOOD HABITS
All alligators, caimans, gavials, and crocodiles are carnivorous.  In the wild, each depends upon a somewhat different selection of prey from its local fauna. For captive specimens, diet should vary with the size of the animal and the availability of prey.  Small captives will do well on small animals (e.g.. goldfish, insects, or mice.)  As the reptile grows, its diet should change from mice to rats to rabbits, chickens, and other suitable larger prey.  It's prudent to supplement meals with added calcium.
VULNERABILITY AND THREATS
Reptiles are susceptible to a variety of cutaneous and deep mycotic infections, however relatively few cases are reported in the American alligator. ... more

characteristics of reptiles

Research on Characteristics Of Reptiles

  1. Open Free Essay
    Launch Free Essay and search for "Characteristics Of Reptiles" to start researching.
  2. Find the perfect essay
    Choose from tons of different essay in various lengths, styles and themes. Find the perfect Characteristics Of Reptiles essay to find and customize for your brainstorming needs.
  3. Brainstorm ideas and themes
    Use the essays you found on Characteristics Of Reptiles and extract the ideas from them. Use those ideas for the basis of your own essay.
  4. Cite your essay
    Remember to cite any essays you used for your new essay.
Start a New Essay on Characteristics Of Reptiles

Find essay on Characteristics Of Reptiles

Bald Eagles and Golden Eagles

Eagle is the common name for a number of diurnal birds of prey, some of which are the largest members of
their family which also includes kites, hawks, buzzards, and certain vultures. The name eagle is somewhat
loosely applied, as several of the groups are not particularly closely related to one another, and some birds
called hawks are larger than some called eagles. The Bald Eagle (Haliaeetus Leucocephalus) and the
Golden Eagle (Aquila Chrysaetos) are two eagles that have several of the same characteristics and have
several different ones as well.

The Bald Eagle is the only eagle species living strictly in North America, and has a presence in every state
in the US except Hawaii. Young (immature) Bald Eagles are light gray when hatched, and turn dark brown
before leaving the nest at about 12 weeks of age. During their third and fourth years, Bald Eagles have a
mottled brown and white color under their wings and on their head, tail and breast. The distinctive white
head and tail feathers do not appear until they are 4 to 5 years old. Bald Eagles range from about 29-42
inches long, and can weigh between 7-16 pounds, and have a wingspan of 6 to 8 feet. This makes them one
of the largest birds in North America. Bald Eagles residing in the northern US are larger than those that
reside in the south. They have a life span of up to 30-40 years in the wild and longer in captivity. Bald
Eagles are monogamous and remain faithful to their mate until death. Females lay one to three eggs
annually, and the incubation period is approxim!
ately 35 days. Only about 50% of Eagles hatched survive the first year. Strong endangered species and
environmental protection laws, as well as active private, state and federal conservation efforts have brought
back the USA's Bald Eagle population from the edge of extinction. There are now about 4500 nesting pairs
and 20,000 total birds in the lower 48 states, and there are over 35,000 Bald Eagles in Alaska. America's
Bald Eagles are back in strong numbers today, but they are still a "threatened" species in the lower 48
states. Breeding season last from November to April. Bald eagles mate for life and use the same nest each
year. They build a huge nest (aerie) of sticks and twigs in a tree, or on rocky cliffs and average in size of 2
feet deep and 5 feet across. The nest takes weeks to construct and is increased yearly. Eventually some
nests reach sizes of more than 10 feet wide and can weigh several tons. Bald Eagles feed primarily on fish,
but also eat small animals (ducks,!
coots, muskrats, turtles, rabbits, snakes, etc.) and occasional carrion (dead animals). Eagles swoop down to
seize fish in their talons and carry it off, but can only lift about half of their weight. Bald Eagles can even
swim to shore with a heavy fish using their strong wings as paddles. However, it is also possible that they
can drown if the fish weighs too much.

The Golden Eagle is a large brown and golden colored eagle that can be found in a variety of habitats in the
western North America region including mountainous areas, canyons, shrub-land and grasslands. The
Golden Eagle can also be found in Europe, Asia and northern Africa. The breeding range in North America
includes north central Mexico, the western United States as far east as the Dakotas, Kansas and Texas, also
Alaska, and across northern Canada.  This bird of prey can weigh up to 15 pounds and can have a wingspan
of 6 to 8 feet and a length of 30-40 inches. Females are often more noticeably larger than males as is true
with most birds of prey. Young (immature) Eagles have a patch of white on the tail, and the adult tail is
gray and brown. The Golden Eagle also builds large their nest out of sticks and twigs in a tree or on a cliff.
The female lays 1-4 eggs (usually 2) and often does most of the incubation. The males provide most of the
food while the females feed and tend!
the ... more

characteristics of reptiles

FAQ

What long should essays be?

Generally, the length requirements are indicated in your assignment sheet. It can be words, paragraphs, or pages given as a range (300–500 words) or a particular number (5 pages). If you are not sure about your essay’s length, the number-one tip is to clarify it with your tutor. Also, if you’re not sure how to write an essay, we have a detailed guide on that topic, just follow the link.

What makes an effective essay?

An essay should have a single clear central idea. Each paragraph should have a clear main point or topic sentence. ... An essay or paper should be organized logically, flow smoothly, and "stick" together. In other words, everything in the writing should make sense to a reader.

What should be included on an essay?

A basic essay consists of three main parts: introduction, body, and conclusion. Following this format will help you write and organize an essay. However, flexibility is important. While keeping this basic essay format in mind, let the topic and specific assignment guide the writing and organization.

What They say About Free Essay

I also want to thank http://freeessay.com , pantip and wikipedia for make it happens. #storytelling

@Gusgustt

Browse Essays

  • C: america the beautiful or the ugly C: america the beautiful or the ugly america the beautiful or the ugly Frederick Douglass (1817-1895) was the best known and most influential African American leader of the 1800s. He was born a slave in Maryland but managed to escape to the North in 1838. He traveled to Massachusetts and settled in New Bedford, working as a laborer to support himself. In 1841, he attended a convention of the Massachusetts Antislavery Society and quickly came to the attention of its members, eventually becoming a leading figure in the New England an...
  • H: American alligator H: American alligator American alligator Alligator mississippiensis is in the family Crocodylidae. This family has existed since the upper Triassic period, but the modern family members appear in the fossil record as little as 80 million years ago. There are three subfamilies, Alligatorinae, Crocodylinae, and Gavaialinae. Some people also include a fourth subfamily, Tomistominae, which contains a single species, the False Gharial. Alligatorinae includes the American and Chinese alligators and the caimans. Crocodylina...
  • A: Bald Eagles and Golden Eagles A: Bald Eagles and Golden Eagles Bald Eagles and Golden Eagles Eagle is the common name for a number of diurnal birds of prey, some of which are the largest members of their family which also includes kites, hawks, buzzards, and certain vultures. The name eagle is somewhat loosely applied, as several of the groups are not particularly closely related to one another, and some birds called hawks are larger than some called eagles. The Bald Eagle (Haliaeetus Leucocephalus) and the Golden Eagle (Aquila Chrysaetos) are two eagles th...
  • R: PART ONE CONTENTS --------------------3 R: PART ONE CONTENTS --------------------3 PART ONE CONTENTS --------------------3 SELFREALISATION AND DIRECTION FOR THE ADOLESCENT PART TWO CONTENTS ---------------------59 MANIFESTATIONS OF AWARENESS PART THREE CONTENTS -----------------104 PHILOSOPHICAL CONTENTS PART ONE. BOLD = MAIN TITLES. REGULAR = SUB TITLES. ----------------------------------------------------------------PAGE FORWARD -----------------------------------------------------4 INTELLECTUALITY -----------------------------------------8 DEDICATION -----------------------...
  • A: Biology And Human Evolution A: Biology And Human Evolution Biology And Human Evolution Human Biology and Evolution Humans are Alive The earliest human life form can be traced back more than 3.5 billion years ago. Humans are said to be descendants of a single celled ancestor. Although they are different in size and shape all basic functions are alike. The more complex the organization of the cell became the more successful and developed it became. As these single celled organisms developed they became known as pre-humans. We share many characteristics wi...
  • C: Invisible Man C: Invisible Man Invisible Man According to Goethe, We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe. Despite the hyperbolic nature of Goethe\'s statement, it holds some truth. Because of this element of truth, society looks to psychoanalysis as an important tool for understanding human nature. Furthermore, psychoanalytic criticism of authors, characters, and readers has a place in literary criticism that is as important as the place of psychoanaly...
  • T: Reptiles T: Reptiles Reptiles Reptiles are vertebrate, or backboned animals constituting the class Reptilia and are characterized by a combination of features, none of which alone could separate all reptiles from all other animals. The characteristics of reptiles are numerous, therefore can not be explained in great detail in this report. In no special order, the characteristics of reptiles are: cold-bloodedness; the presence of lungs; direct development, without larval forms as in amphibians; a dry skin with scales...
  • E: Mrs Smith Sux E: Mrs Smith Sux Word Count: 1216 Darwin, through observation of organisms, determined that a system of natural selection controlled the evolution of species. He found that the organisms that were most fit and assimilated to the environment would survive. They would also reproduce so that over time they would eventually dominate in numbers over the organisms with weaker characteristics. This new theory was radical and interesting to the scientific world but its effects reach far beyond this small institution of ...
  • R: Bald Eagles and Golden Eagles R: Bald Eagles and Golden Eagles Bald Eagles and Golden Eagles Eagle is the common name for a number of diurnal birds of prey, some of which are the largest members of their family which also includes kites, hawks, buzzards, and certain vultures. The name eagle is somewhat loosely applied, as several of the groups are not particularly closely related to one another, and some birds called hawks are larger than some called eagles. The Bald Eagle (Haliaeetus Leucocephalus) and the Golden Eagle (Aquila Chrysaetos) are two eagles th...
  • I: Christ our father I: Christ our father christ our father According to Goethe, We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe. Despite the hyperbolic nature of Goethes statement, it holds some truth. Because of this element of truth, society looks to psychoanalysis as an important tool for understanding human nature. Furthermore, psychoanalytic criticism of authors, characters, and readers has a place in literary criticism that is as important as the place of psycho...
  • S: America the beautiful or the ugly S: America the beautiful or the ugly america the beautiful or the ugly Frederick Douglass (1817-1895) was the best known and most influential African American leader of the 1800s. He was born a slave in Maryland but managed to escape to the North in 1838. He traveled to Massachusetts and settled in New Bedford, working as a laborer to support himself. In 1841, he attended a convention of the Massachusetts Antislavery Society and quickly came to the attention of its members, eventually becoming a leading figure in the New England an...
  • T: The Perfect Man T: The Perfect Man The Perfect Man All men desire and aspire to be something more then they are, whether it is, stronger, better looking, or more intelligent. One character that has it all is a British Secret service agent. He is good with a gun, excellent with the women, and seems to have knowledge about everything. There is not a situation too complex, problem too small, or villain too evil for this man. He stays cool in hot situations and does everything with style and grace. The different parts of James Bonds ...
  • I: Transitions of Reptiles to Mammals I: Transitions of Reptiles to Mammals Transitions of Reptiles to Mammals Transitions of Reptiles to Mammals A long long time ago, in a galaxy not too far away, was a little blue planet called Earth, and on this world not a single mammal lived. However a lot of time has past since then and we now have lots of furry creatures that are collectively called mammals. How did they get their? Where did they come from? These are the kinds of questions that led me to my subject of choice. I will endeavor to provide examples, using specific t...
  • C: Hawks C: Hawks Hawks Major Groups of the Animal The major group that hawks belong to is the bird group. Hawks have wings and feathers to fly. Which all are characteristics of birds. The hawk has eyes on the sides of its head so it can see all around, similar to a normal bird. The differences between the hawk and other birds is that the hawk is a bird of prey. Birds of prey or raptors make their living by hunting, killing, and consuming live animals. They are at the top of the ecological food chain which make...
  • S: The Making Of The Cat S: The Making Of The Cat The Making Of The Cat R. Roger Breton Nancy J Creek ------------------------ Soup or Sandwich IN THE VERY BEGINNING, about 4.6 billion years ago (give or take a few years), a small ball of rock, water and gas had come to be and immedi- ately set about the process of combining its atoms into more and more complex arrangements. Thus began that most wondrous story, the evolu- tion of life on Earth. For the first 2.1 billion years of the Earth\'s existence, the Archeo- zoic Era, life very slowly evo...
  •  : Aquatic Biome : Aquatic Biome Aquatic Biome Water is the common link among the five biomes and it makes up the largest part of the biosphere, covering nearly 75% of the Earths surface. Aquatic regions house numerous species of plants and animals, both large and small. Without water, most life forms would be unable to sustain themselves and the Earth would be a barren, desert-like place. Although water temperatures can vary widely, aquatic areas tend to be more humid and the air temperature on the cooler side. The aquatic ...
  • O: Invisible Man O: Invisible Man Invisible Man Invisible Man According to Goethe, We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe. Despite the hyperbolic nature of Goethes statement, it holds some truth. Because of this element of truth, society looks to psychoanalysis as an important tool for understanding human nature. Furthermore, psychoanalytic criticism of authors, characters, and readers has a place in literary criticism that is as important as the pla...
  • F: Invisible Man F: Invisible Man Invisible Man According to Goethe, We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe. Despite the hyperbolic nature of Goethe\'s statement, it holds some truth. Because of this element of truth, society looks to psychoanalysis as an important tool for understanding human nature. Furthermore, psychoanalytic criticism of authors, characters, and readers has a place in literary criticism that is as important as the place of psychoanaly...
  •  : THE AUSTRALIAN CANE TOAD : THE AUSTRALIAN CANE TOAD THE AUSTRALIAN CANE TOAD The cane toad, Bufo marinus, or giant toad, was introduced to Australia by the sugar cane industry with government sanction, in order to control two specific pests of sugar cane. The grey backed cane beetle and the frenchie beetle. Native to Central and South America, the cane toad has been introduced to several Pacific islands as well. One hundred and one toads arrived at Edmonton in North Queensland in June 1935. About 11 sugar growing locations in northern and central...
  • R: The Painted turtle R: The Painted turtle The Painted turtle The turtle, he is an elusive creature. Hidden well in the water. He is also hidden well in his shell. The shell alone provokes our childlike curiosity to see whats inside, to explore. The more we learn about them the more questions we have. How do they live, how do the reproduce, how do they as cold blooded reptiles survive the winter, and many other mysteries. Science has begun to solve some of these problems, but new problems appear every day. Turtles are very interesting a...
  • E: Australia2 E: Australia2 Australia2 Australia is an island continent located southeast of Asia and forming, with the nearby island of Tasmania, the Commonwealth of Australia, a self-governing member of the Commonwealth of Nations. The continent is bounded on the north by the Timor Sea, the Arafura Sea, and the Torres Strait; on the east by the Coral Sea and the Tasman Sea; on the south by the Bass Strait and the Indian Ocean; and on the west by the Indian Ocean. The commonwealth extends for about about 2500 miles from e...
  • P: Charles Darwin P: Charles Darwin Charles Darwin Charles Robert Darwin was the fifth child of Robert Waring Darwin and Susannah Wedgewood. He was born on February 12, 1809 in Shrewsbury, England where his father practiced medicine. He attended Shrewsbury Grammar School which was a well-kn own secondary school which concentrated on teaching classic languages. Even as a boy Darwin loved science and his enthusiasm for chemical studies earned him the name Gas from his friends. The headmaster at Shrewsbury, Dr. Samuel Butler noted,...
  • T: Hawks T: Hawks Hawks Major Groups of the Animal The major group that hawks belong to is the bird group. Hawks have wings and feathers to fly. Which all are characteristics of birds. The hawk has eyes on the sides of its head so it can see all around, similar to a normal bird. The differences between the hawk and other birds is that the hawk is a bird of prey. Birds of prey or raptors make their living by hunting, killing, and consuming live animals. They are at the top of the ecological food chain which make...
  • I: Florida Panther I: Florida Panther Florida Panther As the deer fed at the marsh\'s edge, it\'s tail flickering as it nibbled tender and ripe green growth. Then the nervous animal pauses in it\'s feeding and lifted its head to listen. Whatever hint of danger the deer had sensed was ignored once the threat could not be located. It stamped a forefoot, lowered its head and began to eat once more, this deer had failed to detect a Florida panther that was downwind (going into the wind) crouched low in the underbrush. Amber eyes however...
  • L: Introduction To Evolution L: Introduction To Evolution Introduction To Evolution Introduction To Evolution What is Evolution? Evolution is the process by which all living things have developed from primitive organisms through changes occurring over billions of years, a process that includes all animals and plants. Exactly how evolution occurs is still a matter of debate, but there are many different theories and that it occurs is a scientific fact. Biologists agree that all living things come through a long history of changes shaped by physical and ...