Thursday, April 17, 2014

Exoneration

     An innocent man can never go to jail right? Our system has no flaws and the people that are arrested are all guilty right?  Wrong.  Innocent men are regularly arrested and convicted either through misidentification, or police misconduct.  However hope for these innocents is not lost and groups like The Innocence Project are working to free these wrongly convicted people.  One such case was the rape and murder of Lori Rosetti.
     In this case four innocent teenagers, were arrested and convicted by a corrupt police system.  They used beatings, and trickery to force these teens to falsely confess to a crime that they did not commit.  But this was not the end of the corruption.  This system also attempted to use false witnesses.  In fact, the police even knew that at least one of the four was innocent, his only "crime" had been refusing to be a false witness.  All of these circumstances led to life sentences for all but one of the teens had agreed to testimony against his friends for a reduced sentence. They served 15 years before they were able to prove their innocence through DNA evidence.
     Advances in DNA evidence have allowed exonerations like these to take place.  They have also provided new evidence on old, unsolved cases.  However one of the larger changes was caused indirectly by DNA evidence.  Realizing how many innocent men have been wrongfully convicted cause a re-evaluation and revision of police practices.  New techniques like blind lineups have been implemented to help make sure that the witnesses aren't influenced by the police officers giving the instructions.  DNA evidence has caused police reform and has improved and repaired a damaged system.

Sunday, January 12, 2014

Can we eat to starve cancer?

     What do strawberries, red wine, yogurt, and maple syrup all have in common?  They can all combat cancer.  According to William Lee these and many other anti-angiogenic foods can defeat deadly cancerous tumors.
    Angiogenesis is the process by which the body produces new blood vessels.  It is required for only a few specific tasks.  For example, when you get a cut, the body produces more blood vessels to heal it.  However, cancer uses angiogenesis against us.  A cancer only becomes dangerous or deadly when it is able to recruit its own blood vessels through angiogenesis, but when it does these new blood vessels are weak and chaotic, which makes them more susceptible to anti-angiogenic therapy.  So by eating these foods and medicines, cancer can be starved and death by cancer delayed or avoided altogether.  This treatment can also be used preventatively either by those who are at risk from cancer or have already beaten it once or twice and want to keep it from coming back.
     In my opinion, this is the best possible way to defeat cancer.  Unlike other treatments there are few to no drawbacks of this treatment, as many of these foods are extremely healthy in ways other than simply stopping the spread of cancer.  While radiation treatments, surgery, other cancer fighting methods can come at a cost to the patient, anti-angiogenic treatments and foods help the body in more ways than one.  I believe that this is the healthiest way to fight cancer.

Thursday, November 7, 2013

Lucy Blog

     How human-like are chimps?  Sure our DNA is only two percent different, but that still puts us worlds apart.  Right?  Wrong!  Chimps are more human-like than you think.  This is proven by Lucy, the daughter of a circus chimp who was raised human.
     A couple bought Lucy when she was two days old and raised her as their own.  Eventually she learned to stand and walk like human children, and then even began to pick out her own clothes.  She learned to make tea and many other chores.  But this didn't mean anything, did it?  Many animals can be trained to do things and surely a chimp is no different?  To be sure the couple found a man to teach Lucy sign language.  The chimp learned fifty different signs and then was able to use them to carry on conversations.  At one point, she found an old, rotten radish and decided to eat it.  After one bit, she spit it out.  When she was asked what it was, she signed all on her own, "cry, hurt food."  On another occasion she even lied.  She had had an accident on the floor, and when she was asked who had done it, she signed, "Sussy," the name of a grad student who came to the house sometimes.  She had mentally become completely human.  However this became a problem, when she grew too strong and destructive to keep and the couple decided to release her into a nature reserve in Africa.  She was too human to be a chimp and her health quickly began to deteriorate, allow with the heaths of other humanized chimps at the reserve.  In an attempt to make these chimps be chimps, they were moved to an island in a river, Sussy the grad student then moved into a cage on the island to keep an eye on them.  Eventually the apes left due to hunger, all accept Lucy.  For the next three years, she stayed with the cage, only surviving, because Sussy fed her.  But eventually she did learn to be a chip and went to join the others, but she kept her deep rooted trust in humans, and this would lead to her demise.  Two years later, her skeleton was found, without any fur and with hands and feet missing.  She was thought to have just wandered up to a poacher who then shot and killed her.  Thus was the end to Lucy's confused life.
Questions
1.  She showed us exactly how human and smart chimpanzees are.
2.  She taught us that you don't need to be a human to be human.  The lines between people and animals are not so thickly drawn.
3.  It makes me see just how humanlike and smart chimps are.  A 2% difference in DNA is not that much.
4.  The experiment, while beneficial, was not worth the cost.  Knowledge is not worth the life of an animal, especially one as human like as Lucy.  The experiment caused her demise, and so it was not worth it.
5.  Lucy's end was an indirect result of the experiment and it saddened me how such a human-like creature could die as collateral damage.  It angered me that someone would kill Lucy as she had apparently trusted her killer entirely.  To betray such trust by killing that animal is sick. It angers me extremely.

Thursday, September 19, 2013

Thinking Like a Mountain Response

      Mountains understand things in ways people can't, at least according to Aldo Leopold.  He was a hunter who, like most, viewed wolves as villains that kill livestock and wild deer.  He believed that "... fewer wolves meant more deer and that no wolves would mean hunter's paradise."  That opinion changed the day he actually killed a wolf, and he realized how necessary wolves are to a healthy environment.
    In this story the narrator relates a story from when he was "... young and full of trigger itch."  Since, he believed that fewer wolves meant more deer, so he, like many others, never passed up a chance to kill a wolf.  According to the story, a friend  and he fire repetitively into a pack of wolves.  They kill a she-wolf and injure one of her pups while the rest flee. They are able to get close to the she-wolf in time to see "... a fierce green fire dying in her eyes."  Then the narrator realized that, unlike people, the the wolves and mountain did not believe all wolves should die.  As the years passed, he saw many states kill off their wolves, and as the wolves were removed he saw deer multiply and destroy the environment; "I have seen every edible tree defoliated to the height of a saddle-horn." He realized unlike many others that wolves were needed to keep the environment stable and saw that diversity equals stability.
    I agree with the author's view although my way of thinking did not change.  Wolves may kill deer, but while this seems bad in the moment, it is actually good in the larger scale of things.  The wolves are able to keep deer populations down thus making what deer survive stronger and lets the environment remain strong enough to support the deer and other animals.  Wolves are as necessary to this environment as the base producers and the sun itself. Where there are no wolves, the deer overrun the ecosystem and eat themselves and others out of house and home.  Each animal has its place in the environment.

Tuesday, September 3, 2013

How does one protect the world from flooding and disease, and even restore damaged habitats?
 To protect the world from these issues, one must simply protect the plants.  Plants naturally help with the above issues along with keeping the soil healthy as well.  Plants are a very big part of life on Earth. The food, the books we read, and many other items all depend on plants.  However, plants and their biodiversity are under threat from climate change, people, and invasive species and need some human protection.

To save the plants, people need to save the seeds, and that is what the Millenium Seed Bank is for.  Twenty-four thousand species are already safely stored within this organization.  These seeds are believed to be able to stay that way for thousands of years, protecting a biodiverse Earth for generations to come.  However, the job is far from done as these three-billion seeds only account for 10% of all the plant species on the Earth.  More seeds need to be gathered to project the world from floods and disease from now and into the distant future.

Thursday, August 22, 2013

1st Post

Welcome to my Biology Blog. I am a student at Animas High School in Durango, CO.  Check back soon to see videos, articles, and my thoughts on what I work with in my sophomore biology class.