New findings in scientific areas can examine and challenge previous assumptions. A recent finding concerning the meerkat, a burrow-dwelling animal in the African grasslands, has cast doubt upon the conventional ideas of altruism, the type of behavior in which an animal sacrifices its own interests for the benefit of another.
Meerkats were previously thought to be a typical altruistic animal. When the other meerkats feed, there is usually one meerkat watching out for predators. The sentinel meerkat gains nothing, it seems, for it can neither eat nor escape quickly and successfully after raising an alarm.
However, in the new findings, it's shown that the sentinel meerkat has already eaten food before standing guard, thus contradicting the thought that it has an empty belly while on the lookout. In addition to this, the sentinel is the first to see a predator, so it is the first to escape. It is also placed nearest a burrow, making it relatively easier to flee. Moreover, its alarm calls may cause the group either to gather or to spread rapidly, which may attract the predator's attention, providing the sentinel a better chance to escape.
The same is with supposed human altruistic behavior. Organ donation to strangers may be considered an unselfish act, which provides little reward to the donator. However, by donating his organ, the donator may most probably receive praise and appreciation from others. Isn't this non-material reward, which increases one's self worth, satisfactory to anyone?
The choice between spending money on tickets to a concert or spending money on jewelry is an easy one. Given this choice, I would buy jewelry. The reasons are obvious, jewelry is an investment; it is permanent; and it is fashionable.
Jewelry like a gold bracelet for example is a very good investment. It is important for women( and for man, too) to have gold jewelry. If you have some serious financial problem, you could always sell your jewelry to help you over any rough spots. You could not sell your used concert ticket.
Jewelry, unless you sell it, is permanent. You always have it ware. Each time you put it on , you will remember the day you bought it. It will give you pleasure for years and years. You could not wear the ticket stub from the concert.
Jewelry is very fashionable. I would feel very smart wearing a beautiful gold bracelet or diamond pin. People would comment and tell me how much they loved my jewelry. They would compliment me on my good taste.
I would feel very rich with my jewelry. I would have a good investment which is permanent and fashionable. Then, when someone invites me to a concert( and pays for my ticket), I will have something beautiful to wear.
Movies have the power to make you laugh, cry, or think about an issue that you might not otherwise think about. Although I sometime watch movies that are serious in nature, I prefer movies that amuse and entertain. When I see an amusing movie it makes me relax, laugh, and keeps me in good spirits.
After a long day at school and work, I need a break and something to take my mind off of the troubles of the day. I can do that with an entertaining movie. When I watch an amusing movie, I don't have to think. I just want to sit back and relax. After a movie, I then feel ready to get back to work on my studies.
Amusing movies make people laugh. Laughing is important for the soul. Laughing not only makes people feel good, but also connects people. When people laugh together, they become friends.
After watching an entertaining movie, which relaxes me and makes me laugh, I feel good. When I feel good I can focus more on other important things like my studies and work. Being in good spirits makes me feel better about myself and gives me a positive outlook on life.
While I can appreciate serious movies that make you think, I prefer to be amused and entertained after a long day of work. Such movies allow me to take a break from the rigors of life by making me laugh and putting me in a good mood杭州哪里学托福好--首选杭州托福培训学校北美考试中心.