Alligators and crocodiles are both relics of the dinosaur age, facing an uncertain future as humans encroach on their territory. The alligator family includes the caiman, and the crocodile family includes the gavial; they are found in many parts of the world. Alligators and crocodiles are strong, agile creatures that have striking similarities, yet have differences.
Alligators and crocodiles have many similarities. They are both carnivores found near water. Most species are about the same size except for the Saltwater Crocodile, which can be two-thousand pounds in weight. Both of them are cold blooded and must regulate their body temperatures, either by being in water or basking in the sun. All have tongues attached to the bottom of the mouth, preventing the tongue from moving. One striking similarity is the lack of sex chromosomes; the youngs' sex is determined by the temperature at which the eggs are incubated; males are incubated at a slightly higher temperature than the females (MacMillan 5). With all these similarities, it can be concluded that they share a common ancestry. Both alligators and crocodiles belong to the order crocodylia.
Despite all the similarities, there are differences in the two animals. Alligators have a wide, rounded snout, and crocodiles have a longer, pointed snout. The fourth tooth in the lower jaw of the crocdile is visible when the mouth is closed, unlike the alligator, whose upper jaw hides the tooth Crocodiles have functioning salt water glands on their tongues, whereas alligators have the gland, but it doesn't function to excrete excessive amounts of salt. Crocodiles need such glands for their salt water environment, and alligators prefer fresh water. Crocodiles tend to be grayish in color, and alligators tend to be greener. Aditionally, alligators mature in four to seven years, and crocodiles mature in eleven years. Although similar in appearance, these are two distinct species.
...Alligators and Crocodiles
Instructor Jason Romero
October 15, 2012
Not many people can differentiate between a crocodile and an alligator. Alligators and crocodiles are similar but different in so many ways. In this paper I will discuss the alligator and crocodile similarities and differences. If you see an alligator or acrocodile could you tell the difference? The ways you can tell the difference in an alligator and a crocodile is the snout, sensory pits, salt glands on tongue, jaws and teeth. Also in this paper I will paint you a picture of how the reptiles look and tell you the difference in the reptile’s size and habitat.
Alligators are semi-aquatic carnivorous reptiles with four legs and a huge tail. (Col, 2010). The reptile tail is half its length and it helps propel the alligator through the water. It is also used as a weapon and stores fat for the alligator which he will use for nourishment for the winter. They are coldblooded (ectothermic) animals which do not make their own body heat but gain their heat by basking in the sun. (Col, 2010). The Chinese alligator can grow between 6 feet long and American alligators are 13 feet long but can grow up to 19 feet.
Crocodiles have large,...
...Crocodiles and alligators are large, frightful-looking reptiles. They are classified as reptiles because they have tough, scaly skin and are cold-blooded. This means their body temperatures become warmer as the air temperature rises and colder as the air temperature falls.
Both crocodiles and alligators bury their eggs in sand or mud until their babies hatch. Very young crocodiles and alligators eat worms and insects. Adults eat mammals and are even known to attack humans.
Crocodiles and alligators swim by sweeping their tails from side to side in the water. Because they need air to breathe, the tips of their noses and their eyes can always be seen outside of the water.
How can you tell a crocodile apart from an alligator?
The main difference is that a crocodile has a narrow snout that comes to a point at the tip, and the fourth lower tooth is always visible even when the crocodile’s mouth is closed. An alligator, on the other hand, has a broad, blunt snout. Its fourth lower tooth cannot be seen when the alligator’s mouth is closed.
Another difference between crocodiles and alligators is their habitat. Crocodiles are found near swamps, lakes and rivers in the tropical areas of Africa, Australia, Asia, Madagascar, and South America. Alligators are...
...Both alligators and crocodiles are members of the reptilian order Crocodilian. But the families they belong to, Alligatoridae and Crocodylidae. As a group, crocodilians are pretty impressive animals: Their lineage goes back 240 million years, meaning they've outlived the dinosaurs by a good 65 million years. Ideally suited for life in water and on land, members of the order can swim up to 20 mph and run up to 11 mph.
Crocodiles andalligators are top-notch hunters and will eat just about anything they can get their teeth on, from fish and turtles to monkeys and buffalos. They also have incredibly powerful senses to detect their prey.
The jaws found on a typical crocodile and an alligator are also different. The upper and lower jaws of the crocodile are essentially the same width, with the teeth exposed in an interlocking pattern. They also have a large, protruding fourth tooth on the lower jaw that is accommodated by depressions in the upper jaw just behind the nostrils. The alligator, however, has a wider upper jaw, allowing the lower teeth to fit into it snugly, effectively hiding them from view. Only the teeth of the upper jaw are exposed along the lower jaw line. Crocodiles have long, narrow, V-shaped snouts, while those of alligators are wider and U-shaped.
...Crocodile – Specialty Animal
A crocodile is any species belonging to the family Crocodylidae and is one of the largest living reptiles. They have long, low, cigar-shaped bodies, short legs and long powerful tails with which to swim. They have tough hides, long, pointed snouts and sharp teeth. Their webbed feet allow them to walk on the soft ground. Their eyes and nostrils are higher that the rest of the head and fits in with the crocodile’s life in the water for they like to float with only their eyes and nostrils above the surface. They have a slit-like valve in their throat which shuts tight when under water, keeping water from entering through the mouth. Crocodiles live in tropical countries throughout the world and prefer large bodies of shallow water, sluggish rivers, open swamps and marshes.
Crocodiles are protected in many parts of the world, but they are also farmed commercially. Commercial crocodile farming began in Australia in the 1980’s and there are currently 18 farms there. Their hide is tanned and used to make leather goods such as shoes and handbags and their meat is considered a delicacy. Farming has resulted in an increase in the crocodile population in Australia as eggs are usually harvested from the wild, so landowners have an incentive to conserve crocodile habitats. In addition, due to the climate in Australia, it is possible to rear...
...Alligators and crocodiles do look similar but there are several physical characteristics that differentiate the two giant reptiles.
Scientists separate alligators, crocodiles, and their cousins, caimans and gharials, according to differences in their skulls, scales, and teeth. The most easily observed difference between alligators and crocodiles is the shape of the head. The crocodile's skull and jaws are longer and narrower than the alligator's.
The American alligator, Alligator mississippiensis, resides primarily in the rivers and wetlands in the southeastern region of North Carolina, but can also be found as far north as the Albemarle Sound. Coastal North Carolina is the northern most range for the American alligator.
In both alligators and crocodiles, the fourth tooth on either side of the lower jaw is exceptionally long. When an alligator closes its mouth, those long teeth slip into sockets in the upper jaw and disappear. When a crocodile closes its mouth, the long teeth remain visible, protruding outside the upper jaw. In general, if you can still see a lot of teeth even when the animal's mouth is closed, you are looking at a crocodile. Alligators have plenty of teeth, but fewer show until the mouth is open.
Like sharks, crocodilians never run out...
...Crocodile Vs Alligator
If we go back to the journey of ancient times is only as far away as the local zoo. Now, peoples can see alligators and crocodiles, remains of the dinosaur stage. The alligator family involves the caiman, and the crocodile family involves gavial; and they both are found in many parts of the world. Alligators and crocodiles are strong creatures that have obvious similarities, but they do also have differences.
First, alligators and crocodiles have the same physical types, yet there are a few precise differences. They both have an extended tail, thick bumpy skin, sharp teeth, and short legs. However, alligators are darker in color. Adult alligators are grayish black, whereas adult crocodiles are light tan to brown in color. Another contrast is that most crocodiles have green eyes, while alligators have brown one. Alligators have U-shaped heads, while crocodiles have longer and more pointed V-shaped. Crocodiles have a longer, wider nose, with eyes farther forward.
If we look at an alligator and then to the crocodile, he/ she will notice a change in their mouths: Both alligators and crocodiles have the fourth tooth on both sides of the...
...Having a reliable source of transportation is convenient when handling everyday errands. Owning a gas operated transportation can benefit a parent, student or business person in prioritizing there lifestyle. However, the economy is on the rise demanding more money in fuel and oil cost. The price of gas could overwhelm any individual in today’s economy. Gas powered cars like Cadillac’s, Lincoln’s, and Buick’s could break your pockets. Fuel efficient vehicles such as the Prius, Honda insight and Chevy volt could benefit your budget as well as providing a safe environment.
Fuel efficient vehicles are quit expensive to purchase and repair. They are known to last a number of years without maintenance just as a hybrid vehicle. If a vehicle such as this has stopped working either be the motor, battery or control unit, which has to be replaced, unlike gas operated vehicles. Few individuals prefer the performance of electric operated vehicles for many reasons such as speed, fuel efficiency, mataneince, cost and refueling time. However “The hybrid might seem like a good alternative, but it isn’t. Hybrid car performance depends a great deal on how and where you drive.” Auto.com (March 24, 2010) Electric power vs. Gas powered cars, February 26, 2011, from http://autos.com/car-buying/electric-power-car-vs-gas-powered-car.
One of the most top disadvantages of driving hybrid vehicles is safety. They are much lighter and smaller and difficult to maneuver in strong weather...
...Comparison and Contrast
“A dream and real vacation”
Siti Aisyah Othman
Afiqah Izzati Abd Hamid
A real Vacation
- Same currency
- Concept of
- The equipment
- Beauty of the
- Friendly society
A dream vacation
- More expensive
- Guest Villas
- Beauty of the
- The equipment
( Included in the - Temperature
- Friendly society
What will you think when you hear about a
vacation to an island? I am sure that you must
have gone to a vacation in Malaysia before. But
have you ever dreamt of having a nicer vacation,
such as in Maldives Island? There are some
similarities and differences between a dream
vacation to Maldives Island and a real vacation
in any Malaysian Island, such as the budget, the
environment and the facilities.
The first thing that you need to consider before going
to a vacation is your budget. You need to have a budget plan
so that you will know your capability of affording your
vacation. For a real vacation, you will definitely choose to go
to an Island that is affordable since the currency is the
same. In the contrary, if it is a dream vacation, you can
choose any expensive islands for your vacation but you will
need some time to save some money in order for you to go
there. This is because, the currency of money between