Omnivores, Carnivores, and Heribivores

March 8, 2012

How have organisms evolved since dinosaurs.

Filed under: Uncategorized —— fl1504073 @ 8:01 pm

When I watch the movie Jurassic Park, most times I just pop a bag of popcorn and curl up on the couch and heck, just enjoy a great movie. But last Monday when I had to choose a topic, I thought of that movie. Minus the humans running away and being eaten, dinosaurs and modern day organisms are very different! I guess that is why I choose this as my topic mainly because I knew I could write a lot about it.

Organisms have evolved greatly in physical and mental categories since dinosaurs.

Dinosaurs were creatures of brute. A lot of these dinosaurs did not have a brain bigger than an average apple.  Dinosaurs were not the first reptiles to rule the Earth. Other creatures were around and evolved before the Mesozoic Period. In fact the first bigger reptiles were archosaurs and therapsids. One of these was a regular crocodile which still exists today.

As you all may know, it is not concluded yet, but theory states an asteroid collided with the Earth and wiped out almost every living thing. From that the remaining of the population evolved into what is known as the Cenozoic Age.

The Cenozoic Age is not only the age of mammals but man as well. Beginning this age was the first larger mammals and primitives. Then as time progressed, rodents and other mammals appeared. By the Oligocene Period pigs, deer, cats, rhinos and other modern animals we know to this day had appeared. Man also evolved from apes in this period of time and were known as the first primates  ever to roam the Earth. Then 2.4 million years ago the Great Ice Age occurred.  When many people picture the ice age, they connect it to the Great Ice Age, but there was actually many ice ages in history, even when dinosaurs ruled the Earth. From this Ice Age a gigantic glacier formed which moved slowly but destroyed everything in its path. During this great ice age, many animals moved south from this glacier in order to survive. After this Ice Age, the remaining animals repopulated the Earth.

Since the Ice Age, 11,000 years ago, man has evolved greatly. Our knowledge is greater than any other species. This knowledge has perfected us in arts, architecture,  foods, and many more modern actions in our lives. Animals have evolved greatly as well, size especially . No other animal on this Earth has exceeded the size of a blue whale. Most animals around us do not stand taller than us humans. There is many great changes physically and mentally in organisms since dinosaurs.

“Geologic Time Scale” enchantedlearning.com. Zoom Astronomy. N.A. 3/8/12.

“10 most important dinosaur facts” about.com. About.  Bob Strauss. N.A. 3/8/12.

Picture-”Dinosaurs died from sudden temperature drop ‘not comet strike’, scientists claim” www.telegraph.co.uk. The Telegraph. April 24, 2010. 3/8/12

March 1, 2012

What are humans most like?

Filed under: Uncategorized —— fl1504073 @ 7:44 pm

Omnivore- “An animal or person that eats food of
both plant and animal origin.” Humans are Omnivores, and this is a stated fact.
But are their some characteristics of humans that can be more closely related
to a carnivore or a herbivore?

Although humans are omnivores, capable of eating
meat and plants, that does not mean that we are exactly like most omnivores.
Human characteristics are more closely related to herbivores. By proving this
theory, scientists have many relations proven between humans and modern herbivores.
By examining these different eater’s stomachs, carnivores have an intestinal
tract
that reaches three times the organism’s body length. While as inside a
herbivore, their intestinal tract reaches almost twelve times the organism’s
height. A human intestinal tract is much more relatable to one of a herbivore.

Our physical characteristics are greatly in common
with herbivores. Our mouths are small compared to our head size, unlike
carnivores where their mouths are more meant to capture, chew, bite, rip,
and dismantle their prey. Herbivores use their mouths mainly for chewing and biting
into food.

Our ability to hunt is not as extensive as a stealthy carnivore. Although it is
said that, “Man is the most dangerous game on Earth,” that just might not be
entirely true. Picture a man in the United States Marine Corps with camouflage
on, an M16 rifle in his hands, and grenades strapped to his jacket. You would
not want to mess with him. But take those necessities away from him and drop
him in the wild. We as humans do not find and kill our intelligent
prey every day. We are not quick as hawks, panthers, or a Bengal tiger.  From the day we were all born we had our necessities
around us. In this way herbivores do as well.  What is their growing from the ground or
treesaround them, they eat. That is the basics of life for them when they are born just
like us humans.

All of this information still does not come close to
concluding that Humans could secretly be herbivores. Our stomach tract is
longer than a carnivore but is not as long as a herbivore. We have the ability
to eat both vegetables and meat. Humans do have many relating characteristics
to herbivores, but we are all omnivores.

“Were humans meant to eat meat?”rense.com. E.magazine.com. Sally Deneen. 2/13/2. 3/1/12.

February 23, 2012

How do all Omnivores, Carnivores, and Herbivore play a role in the world?

Filed under: Uncategorized —— fl1504073 @ 6:26 pm

Think of a buzzard swooping above in circles. He spots a dead raccoon hit three days ago. He makes sure the coast is clear and flies down, then begins chowing on this dead organism. Meanwhile, your mother is coming home from work and the buzzard shoots back into the air till, once again, the coast is clear and comes back down. Later this buzzard leaves its remains on a soft patch of ground. The ground absorbs the nutrients and becomes fertile, and a patch of fresh grass forms.

Nature has it’s ways of continuing a cycle of life. Everything has a purpose on this Earth. An example would be those annoying mosquitoes that draw blood from your body around a campfire. A mosquito feeds bats. Bats can be eaten by snakes, dogs, coyotes, or any other organism that can catch it.

In all of these creatures, none of them would continue to survive without an autotroph. That is where  your herbivores or omnivores will feed from. And as you know, carnivores will feed from herbivores and omnivores. As long as these populations will stay under control, there will be no shortage of anything and the world goes round and round.

Even humans are important to the environment. Since we are all capable of eating meat and vegetables, which some people don’t, we support the environment by keeping plants or animals from over populating. We also do many things that other organisms are not capable of doing. For instance the Arbor Day Foundation raises money to plant trees. We are supporting the environment by planting it ourselves instead of waiting for the environments long process. We as human beings have more knowledge than any other organism living. So we put that knowledge and know-how to work in saving and preserving our world we live in today.

Even the nastier animals like the buzzard play a big role in preserving our world. Scavengers and decomposers are considered the dump trucks of the animal kingdom. They take the unwanted, which are dead organisms, and eat it to survive. When they are finished,  they leave the bones behind which will decompose, and release the remains which will make land more fertile. So they are not only giving land more nutrients, but also getting rid of unwanted organism which is always good.

Omnivore, Carnivores, and Herbivores are all needed to help the world stay healthy and clean. Each one has a purpose to carry out on its time on planet Earth. Only time can tell if this process will ever change.

“Scavengers and Decomposers.”www.nhptv.org. Nature Works.n.d. February 23, 2012.

Picture: “A food web” freewebs.com. Kickbuttmamas. 2007. February 23, 2012.

 

 

February 9, 2012

Comparing and Contrasting Omnivores, Carnivores, and Herbivores.

Filed under: Uncategorized —— fl1504073 @ 7:57 pm

Have you ever thought, “Is there many differences between these types of organisms, I mean they eat different things but besides that are they different?” Well there is many similarities between Omnivores, Carnivores, and Herbivores, but there is also differences.

Some of the similarities are just features in organisms that every organism born has. All of these eating groups are all living organisms. They had to have been born, contain a genetic form of DNA, and they have to die. Omnivores, Carnivores, and Herbivores all have to eat and drink water to survive.  All three of these eaters can live in any environment, unless some of the resources are limited. For instance the ocean. Many fish in the ocean purely survive on plants, while other organisms such as sharks are carnivores and survive on meat. Omnivores in the ocean are just like Omnivores on land, they eat both plants and meat. An example of an ocean omnivore would be a sea turtle.  I am not just singling out the ocean, this goes for all environments on Earth as well.

Some of the differences between Omnivores, Carnivores, and Herbivores are just based on their diet. Carnivores of course only eat meat. Herbivores only eat plants, and Omnivores can eat both plants and meat. We as humans are omnivores. The main reason why Herbivores eat plants, Carnivores eat meat, and Omnivores eat both is just their digestive systems. Carnivores have a digestive track that prevents them from breaking down the cell walls in plants. Herbivores cannot eat meat because their digestive track is trained to only absorb the energy from plants. Their enzymes cant even break down meat to some sort of form of energy. Omnivores have a digestive system that allows them to break down meat and plants.  Another difference is teeth. Carnivores have longer, sharper teeth to rip the meat off of animals. Herbivores have more stronger, compacted molars to grind and crush stronger plants. Omnivores have a mixture of both herbivore and carnivore teeth. We as humans have our molars which lie in the the back of our jaw to chew and our front teeth in the front of our mouth to bite and rip off.

In conclusion to this article, Omnivores, Carnivores, and Herbivores need each other to survive. They always have and they always will.

“Omnivore, Carnivore, and Herbivore, what’s the difference?”www.freshaquarium.about.com. Shirlie Sharp.NA. 2/9/11.

 

 

February 3, 2012

What are carnivores?

Filed under: Uncategorized —— fl1504073 @ 8:02 pm

The predators of nature are for the most part, the carnivores. Omnivores do eat meat but they can survive without it. Unlike the carnivores, they survive purely on meat and nothing else.  But since carnivores only eat meat, they have to be a little more stealthy then omnivores and herbivores. This is because, like herbivores, just need to walk outside and eat food that doesn’t run away or fight. Since carnivores eat meat, they have to be more skilled and smarter than their prey.

Carnivores can be dated back to the first living organisms on Earth. The first carnivore was a prehistoric fish in the sea, which further progressed into amphibians that moved onto land. Some of the most know carnivores in history were dinosaurs. The most known would have to be the Tyrannosaurus Rex. This is one of the biggest dinosaurs that ruled the Earth. It would swallow prey whole and rip its ginormous teeth through their flesh.

Then, after dinosaurs became extinct, other carnivores progressed, like the Saber-tooth Tiger, which was strong but lean and sprinted like the wind. The Saber-tooth had two huge fangs that hung from his mouth that he would kill with.

Moving on to modern day, many of the modern carnivores have the same features as prehistoric carnivores. For instance the African lion has some of the same features as the Tyrannosaurus Rex. For instance the piercing teeth (maybe not as huge as the Tyrannosaurus Rex) that are used to strike its prey with a crushing bite. Or the lion’s quick, edgy attacks that capture the enemy as fast as lightening. That feature compares greatly to the Saber-tooth.

Do not get the idea of carnivores just being strong, huge, meat eaters. There is more than just that. For instance the Venus flytrap. This carnivore waits patiently until an insect of some sort finds a spot to rest in it. Once the plant for sure has it’s prey, it snaps it’s mouth shut and digests the insect.

You see, carnivores have always been the main predators from the dawn of life to way past our expiration dates.

“Carnivorous Plants.” www.nationalgeographic.com. National Geographic. June, 2007. February 2, 2012.

“Saber Tooth Tiger Facts.” www.buzzle.com. Buzzle. 10/10/2011. 2/2/12.

Picture: Ms. Brown it was on Wikipedia, I don’t know if that is alright or not?

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