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The phrase "survival of the fittest" refers to biological fitness, not physical fitness. Biological fitness is the quantitative measure of individual reproductive success, e.g. the tendency of lineages containing individuals that produce more offspring in a particular environment to persist and thrive in that environment.
The Philadelphia Science Festival is an annual free science festival held in Philadelphia. The festival is organized and managed by the Franklin Institute. The inaugural event was held from April 15, 2011, through April 28, 2011. [1] [2] Subsequently, the festival has been held every year in the second half of April. The festival stretches over ...
A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.
McDonald's is behind one of the summer's most coveted treats, which has put its mascot Grimace at the forefront of a viral trend. And it all started with what appeared to be a simple promotion in ...
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The new study, published today in PLOS One, could help doctors who perform facial reanimation surgery and rehabilitation—understanding the characteristics of a great smile will help to make sure ...
A drawing by Konrad Lorenz showing facial expressions of a dog. The grimace scale (GS), sometimes called the grimace score, is a method of assessing the occurrence or severity of pain experienced by non-human animals according to objective and blinded scoring of facial expressions, as is done routinely for the measurement of pain in non-verbal humans.
It is distinct from a similar but usually involuntary expression of anxiety known as a grimace. Although cross-cultural studies have shown that smiling is a means of communication throughout the world, [ 1 ] there are large differences among different cultures, religions, and societies, with some using smiles to convey confusion, embarrassment ...