The four groups of crocodilians are alligators, caimans, gharials, and crocodiles. What are main

As a conclusion you have learned about the american alligators appearance, habitat and diet, and some interesting facts. Now you know how american alligators live and survive make sure that you never mess around with this things because they are really dangerous. Don’t let one of them fool you they look like logs when they are

Since Freshwater biomes are found all over the world, the types of plants and animals that live in these waters can be different. Some examples of plants that may inhabit a Freshwater biome are grass, spike rush, water lilies, cattail, and sometimes trees. Most plants living in these waters are not recognized by humans. Animals that live in these biomes are frogs, turtles, snakes, fish, and sometimes alligators. Insects like mosquitos also inhabit these biomes greatly. Animals such as raccoons and earthworms live on the land surrounding the biome, but depend on the biome to survive. Some animals, such as beavers, live in both the water and the land surrounding it. Algae also plays a big role in a Freshwater biome ecosystem.

We use fossils to compare and contrast how and organism has evolved over a long period of time and how it has adapted to new changes.

According to the Smithsonian Zoological Park one of the features that makes American Alligators unique is “The large fourth tooth in the lower jaw of an alligator which fits into a socket in the upper jaw and is not visible when the mouth is closed.” As the teeth of the American Alligator wear down they get replaced which can lead to replacing their teeth over 2,000 times in their lives. The American Alligator has nostrils that stick up further than the rest of the snout, this is so they can breathe while the rest of their body is under water. The eyes of the American Alligator consist of upper and lower eyelids that protect them. They have a third eyelid, which protects its eyes when they swim underwater. Alligator eyes have also developed to see in the dark by reflecting light back into its own eyes.

Results showed that clutch temperatures were relatively stable throughout the day, and that certain temperatures were, indeed correlated with observed offspring sexes. Though this study tested the American crocodile, Crocodylus acutus, it provides evidence of a correlation between egg temperature and the resulting sex of offspring. Charruau also presented an important point about global warming possibly posing a threat to the ratio of female to male offspring being produced in the near future, due to the fact that alligator sexing is based solely on environmental temperatures. These disrupted ratios could ultimately lead to the extinction of certain species, which are dependent on this mode of sex

Ichnology, the study of trace fossils, is the principal study in following and learning about trace fossils and how these fossil types indicate habitats. Ichnologists can use trace fossils, such as a track way and walking patterns of dinosaurs, to determine the specific area a dinosaur walked on, which can express a dinosaur species preferred habitat. By examining sedimentary layers and structures, ichnologists can use fossilized tracks to determine what specific habitat a species of dinosaur lived in. The use of uniformitarianism can be used to conclude what specific environment a dinosaur lived in through sedimentary structures. Ichnology uses tracks to determine what habitat a dinosaur inhabited by the pattern that a dinosaur walked in. With nests, Ichnologists can use information to determine what habitat a species of dinosaur lived in to ensure a safe environment for the eggs. Ichnologists can determine if a species of dinosaur stayed in a specific environment by studying the walking patterns of track ways and the indications of dinosaur nests. Ichnologists use track ways and nests to determine preferred habitats due to a plethora of trace fossils that a species of dinosaur can make in its

From both the title of the chapter and the introduction by Dr. Shubin, this chapter begins with a focus on teeth. Because the function of teeth is to break down food before it enters the esophagus, the different shapes of teeth can represent many different things about the organism it belongs to including what type of eater it was (carnivore, herbivore, or omnivore). Teeth are the hardest tissue (not bone) in the human body and therefore fossilize well. As Dr. Shubin stated in chapter one, there must be many points that permit a fossil to make any kind of scientific conclusion. Obviously, the state of their presence is important, so the fact that teeth preserve well allows for them to be great specimens for analysis. Dr. Shubin and his team analyzed fossilized teeth in areas as different as Nova Scotia and the Arizona desert. Studying different fossils in these diverse regions allowed the team to see that mammalian and reptilian teeth are very different. For example, mammalian teeth differ from organism to organism to fit with the organisms need (Cheetahs that eat only meat will have different teeth than deer who are herbivores) and are replaced only once in the lifetime of the organism while reptilian teeth are usually sharp and are constantly replaced if damaged. These differences allowed scientists to characterize fossils as either a reptile or a mammal. Similar to Tiktaalik discussed in chapter one, the discovery of fossils that were part reptile and part mammal allowed the researchers to see that mammals evolved from reptiles, and further supported the theory of evolution. Further studies yielded even more

For example, this past year a new study from the University of Sheffield, found that “human teeth evolved from the same genes that make the bizarre beaked teeth of the pufferfish” (Fraser, 2017). Another study found that a gene that helps humans to control eyes and ears is also in primitive creatures such as jellyfish. A study done in the Czech Republic confirmed this finding in a gene called pox 6 which is an “evolutionary conserved regulator of eye development”(Ruzickova et al., 2009) that both humans and primitive creatures share. Both of these studies are in complete correlation with Shubin’s findings. Over and over, Shubin’s findings fit with other research articles that back up his own studies and

They like to live in the trees, but they get along very well on the ground.

Hatchlings are 1 inch long while adults are 8-10 inches long. With this breed, the females are dominant in size than the males. Females begin to hatch eggs when they are 6

They live in Central America and South America because it is warm and moist there. They live in the rainforest and hang and eat their.

In the science of paleontology, the history of life is studied. Paleontologists study fossils to learn the past ecologies, evolution, and the origins of humans. In order to understand the processes that have led to both the origination and destruction of organisms since life began, paleontologists incorporate both scientific knowledge and studies. Fossil findings are critically important for confirming predictions of evolution theory. Of the many discoveries that are made yearly to add depth to the understanding of evolution, an example is a recent discovery of a creature they named Tiktaalik. The Tiktaalik was uncovered to be a transitional animal between shallow-water fishes and limbed animals. The creature supports the idea that it emerged from both mammals and reptiles, suggesting that the two are related. These findings support prediction of evolution, contradicting the belief that God

The fossil record is evidence of evolution. Fossils are often fingerprints of evolution. They help scientists track how species evolved

How big is the average male grown alligator? The average size for a grown male alligator is 12 feet long and 1,000 pounds. They live in the southern states. The states are from Texas through North Carolina. The most common places to find an alligator are: slow moving marshes,

Tapirs live in Central and South America in a humid and hot habitat. They usually live in grasslands or forests. Except the mountain tapir that lives way up in the Andes Mountains. Many people think tapirs have not changed for millions of years.