Wednesday, February 15, 2012

A Form of Birth Control May Seem Convenient, but is it Worth the Risks?


Although this can be a sensitive topic to some, and I know there are people who don't feel comfortable addressing it; it needs to be discussed. This topic is birth control. Even though I know there are many men reading this blog, I feel as if this subject should be addressed. I have recently dealt with various issues concerning different types of birth controls. Each brand and method has their own risks, just as any other type of drug or medicine. The problem with birth control is that many girls are too afraid to ask questions. Anyone taking a prescription needs to be aware of the side effects and this is no exception.


While being home over vacation, I recently met with my doctor to discuss trying new forms of birth control. Being an extremely busy student, I want a form of birth control that I don’t have to worry about remembering to take every day. One of her first suggestions was Depo Provera, a shot that women receive once every twelve weeks. My first concerns were the side effects, in which she told me that about 60% of women do notice sufficient weight gain. My reaction, “no thank you!” But besides being vain, I also opted out on this form of birth control for other reasons; it just was not right for me.

As I was surfing Science Daily, I ran across the article “Hormone in Birth Control Shot Linked to Memory Loss.” Naturally, I became intrigued and wanted to know more. The Depo Provera shot contains an active hormone called medroxyprogesterone acetate (MPA), which is not found in other forms of birth control such as the pill. This hormone already has a history of effecting bone density, but now it appears that it does indeed effect memory loss as well. An experiment performed last year with different groups of rats showed that at any point in their lifetime were cognitively impaired, compared to rats who had not received the hormone. MPA is also used for post-menopausal women, so that is why some women don’t start taking it until later in life. Even worse, it was also confirmed that when MPA was no longer in the subject’s system even months later, it still was showing effects on the brain.


This article was written November 1, 2011. Although it is a few months old, this is a very up and coming discovery in women’s health. I write to not only the ladies, but to you gentlemen too! Be aware of what you are putting in your body. Granted, no one knew until recently that Depo Provera had these memory loss effects. But that does not change the fact that it is still important to ask questions! Never just assume that because your doctor recommends it, that the drug is perfect for you. I have experienced health issues due to taking wrong forms of medication, and I listened to my body and made the change. Worst comes to worst, you’re embarrassed and blush for a few minutes during your doctors appointment. In the long term, those few minutes could save you years on your brain and body.


Taylor Pirog (2)

Wednesday, December 7, 2011

Week 10: Elusive Spots


The Amur Leopard is one, if not the most, endangered big cat in the world. With only 30 to 35 recorded individuals left in the wild this cat needs our help. These beautiful animals
are "only found in the Russian Far East and North East China". They are elusive and majestic. Only using humble camera traps are scientists able to capture images of the Amur leopard. Conservationists and veterinarians use skilled trackers to locate, dart, and check the physical health of these big cats. They also take blood samples to identify individuals.



Poachers are the main reason Amur leopards are dwindling. Not only do poachers hunt leopards for there fur, but they also hunt the leopards' food source. Many types of deer are illegally killed for sport and other recreational activities that authorities are trying to prevent or better yet stop. There are several groups in Russia that are geared towards protecting the leopards by monitoring their locations using tracking techniques. The "protectors" have caught poachers and have issued more than 500 citation violations and confiscated over 500 illegally owned guns. \



With the help of local communities, conservationists, and zoos hopefully this species can make a come back and get taken off the endangered species lists. It will take a very long time to do this, but with a little effort and passion for the survival of the big cats, the future will look "spottier", brighter.

Posted by: Em Arsenault (10)

http://www.amur-leopard.org/index.php?pg=gallery
http://www.amur-leopard.org/index.php?pg=1

Thursday, December 1, 2011

The Rude Brood Parasite

Studies on animal behavior show many ways in which birds evolve extravagant and mind-boggling characteristics that improve their fitness. These intricate characteristics, such as the bowerbird's nest filled with color schemed ornaments and the manikins perfected moonwalk are males attempts to win over females, in order to pass as many genes as they can to the next generation. Unfortunately, the females have no extra energy on becoming great dancers or to build a beautiful home, in fact they don't even have time to produce any beautiful coloring or anything attractive on their outside coating. They are plain ugly because all of their energy goes to bringing up her children, regardless if the male is present or not.

There are a few species though, that somehow cheated the system. The females evolved to lay their eggs in a different bird species nest. This phenomenon is called brood parasitism. They then do not have to raise their children, but leave it to another struggling mother not of her kind to do the work. The bird not only drops her eggs off into the nest, but many times also inhales the eggs of the other mothers, getting a meal in while disguising the fact that there is a new egg present. This arms race between the two species has been going on where the poor working mothers evolve ways to distinguish between the foreign egg and her own, but the parasitic birds are becoming better and better at disguising their eggs. They also have their eggs hatch slightly faster than the rest of the eggs in the nest. Therefore, they get the best treatment and first dibs at the energy of the mother as she scrounges for food to feed and raise the foreign child. There have been hypothesis that the opening of the foreign baby's mouth with its inner bright coloring is simply enough to initiate the fixed action potential of this hard working mother to feed it, even if the bird baby looks and sounds absolutely nothing like her species.

These parasitic behaviors are starting to be favored with increasing deforestation. The populations of brood parasites are increasing, which is increasing the chances that the host mother will be unfortunate enough to be caught with one. Therefore, the populations of the host birds are slowly but surely decreasing.


Posted by Abbie Saranteas

In the Spirit of the Holidays...

Whether you celebrate Christmas or not, you are probably aware of Santa and his magical flying reindeer that pull his sleigh. (Spoiler alert) Although in 6th grade I learned that Santa is not real, his flying reindeer are... sort of. The reindeer are not actually flying, but they do believe that they are on account of a hallucinogenic mushroom found through out colder climates in Northern Europe. The fungus, Amanita muscaria, contains a psychoactive chemical called Muscimol that affects an organism's central nervous system and alters perception, mood, and behavior. Reindeer throughout Scandinavia are known to seek out and eat this mushroom for its mind altering affect. After consuming the "magic" mushroom the reindeer commence playing and frolicking as if experiencing the sensation of flying. While reindeer love consuming this mushroom, its psychedelic affects are not for all forest creatures like musk ox which purposely avoid this mushroom. Humans have consumed this mushroom throughout history, including the vikings and have experienced its magical powers.

Happy holidays everyone and if you know a reindeer flying under the influence don't be afraid to reach out and help.

Weird Science-BBC

Posted by Suzanne Sullivan

Talking Dog?

Since we were little kids many of us have always wanted to see or find a talking animal that could communicate with humans or at least make sounds that resemble human words. In this youtube clip I have is of a husky dog talking? Or this is what the link says. Is the dog in this clip actually consciously responding to and repeating what the human is saying or is it just an innate mimicking characteristic the dog has. What would be the mechanism that makes this dog make human like sounds? Or maybe this dog isn't making any resemblance of human words at all and that in our mind we are using mental gymnastics to make it seem like the dog is talking.In the video the dog name Mishka is repeating what the owner is saying by some barks that very roughly sound like the tone at which the owner says the words but not articulating the words. Is this dog unique or just doing this because it's a natural response. You be the Judge. However subconsciously we want this dog to talk and respond and articulate words back to us in clear English. We want something unique that has never been done before. For some of us we want to prove that mankind isn't the only sentient being in the universe. That maybe some animals have traits and qualities that make them conscious of the world around them. That they are able to put in perspective their place in the universe.


posted: by Andrew Ryan

Wednesday, November 30, 2011

Monkeys Mother Wingmen

How often do you find your mother setting you up with a date? For a young male muriqui monkey of Brazil, his mother is the best wingman he could hope for. Troops of muriquis are led and run by a matriarch. This older female can live upwards of thirty years, and governs the mating that happens within her troop. Because of this, there is no competition for male dominance in mating. Instead, the matriarch's policy seems to be "everyone gets a share." Although some males are preferred and will have greater reproductive success, all the males will get the chance to pass their genes along. This raises the question: "if everyone has a chance to pass on their genes, doesn't that take natural selection out of the picture?" If the males are not competing or being selected for, then detrimental traits could be passed along, harming the overall population. This species is severely endangered, so this could be part of the reason.


Posted by Rhys Ursuliak (9)

"High Five!" Cried the Raven


RAVENS use "HAND" GESTURES to COMMUNICATE

If I asked you what a wing was for, chances are you would tell me it helped birds fly. Would you ever think that a wing, which has the same basic anatomical bone structure of the hand that any animal with an actual hand has, could use its wing to make gestures, as well? A recent study has shown that ravens use their beaks and wings similar to the way humans use their hands, and can perform gestures such as pointing to objects. Until now, this behavior has not been seen by scientists in anything other than primates. Although dogs have been observed to point to things, they were excluded as a possibility, since they are taught this action by humans. Even when considering primates, gestures comparable to those of humans are rarely seen. One instance where such a gesture has been seen is in Uganda, where chimpanzees use directed scratches to point out parts of their body they would like groomed.

With more and more research, ravens have been found to be extremely intelligent creatures, out-competing with apes in some cases. Biologists have found them to be a very object- oriented species.

Research involving ravens has shown that they use their beaks to motion to and offer items, like moss, stones and twigs, which often leads the gestured to look at the object. Those gestured are commonly members of the opposite sex. The two would then interact directly, maybe by clasping their bills together or jointly manipulating the item. This has suggested that these gestures are used to measure interest of a partner or to reinforce bond strength. This has completely blown the expectation of what a "gesturer" should look like, considering that the raven has wings instead of hands, a beak and is able to fly, yet can still take advantage of nonvocal communication in this way.

It is a fact that ravens possess a high level of cooperation between partners, which suggests that gestures evolve in species that demonstrate a high degree of collaborative abilities. This discovery could open new possibilities on the origin of gestures within humans. One thing is certain, further research must be done on the other various gestures of ravens in order to make connections between function and meaning that could shed light on our own species' development.

http://www.livescience.com/17213-ravens-gestures-animal-communication.html

Posted by Chelsea Van Thof (9).