Autism is a medical thriller -- and a highly controversial one at that. The debilitating disorder makes headlines within the information on a frequent foundation, and never too long ago, it was getting press within the discuss-present circuit, courtesy of actress Jenny McCarthy. McCarthy garnered attention for the disorder when she asserted that ingredients in some childhood vaccines might trigger the development of disorders on the autism spectrum (abbreviated as merely "autism" from here on out). To date, no reputable scientific study has established a connection between vaccines and autism, and elimination of the ingredient theorized to be the perpetrator -- a preservative known as thimerosal -- hasn't triggered analysis charges to go down. Regardless of what researchers consider triggers autism, with 1 in one hundred ten children in the United States residing with the disorder (and annual will increase in prognosis), it's no wonder that the race is on to determine the cause or causes [supply: CDC].
The Chinese language attacked a Soviet border patrol boat in March 1969, leaving 24 Soviets useless. All through the ensuing spring, other armed border skirmishes broke out. One conflict in 1969 left 800 Chinese language useless in a battle during which the Soviets unleashed aircraft, tanks and missiles and lost just 60 of their own soldiers [supply: American College]. After this undeniable victory, the Soviets issued veiled threats of further violence should any more border disputes come up.
Thankfully, cooler heads prevailed, or else none of us might be here. On Oct. 28, Khrushchev agreed to take away the missiles from Cuba in change for an American promise not to invade the island, as effectively because the withdrawal of American missiles from Turkey. The brush with nuclear warfare was a wakeup call to the rival superpowers, alien lab disposable which instituted a direct phone line between the Kremlin and the White House as a result [source: State Department].
Although most of us carnivores take pleasure in a turkey throughout the holidays, the standard predominant dish is definitely a roast goose. Feasting on goose was an necessary part of many historic celebrations and rituals. Because geese are migratory, they might disappear and reappear throughout sure instances of the 12 months -- often around harvest time and alter of seasons. Families sometimes served roast goose to have a good time the winter solstice. Later, in Victorian times, it grew to become synonymous with Christmas. For a lot of generations of Eastern European Jews, goose was additionally a favourite during the Hanukkah holiday.
Convergent evolution
Convergent evolution occurs when a number of unrelated species (which means they don't share a latest ancestor) evolve comparable morphologies or conduct. Typically, the species "converging" fill similar ecological niches in a given habitat or in numerous areas of the world. For instance, a torpedolike body amongst marine organisms is widespread in several unrelated animals. Marine mammals like dolphins, certain species of sharks, and even fossils of extinct marine reptiles, for example, share this shape -- but they do not share a recent ancestor. Usually, similar morphologies evolve in organisms to overcome the identical pure hurdles in several environments. Very similar to convergent evolution, parallel evolution happens when species evolve similarly however share a latest ancestor.