Word: egges
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Animal sex, however, is a more recent invention. Biologist Lynn Margulis of the University of Massachusetts at Amherst believes the evolutionary roots of egg and sperm cells can be traced back to a group of organisms known as protists that first appeared some 1.5 billion years ago. (Modern examples include protozoa, giant kelp and malaria parasites.) During periods of starvation, Margulis conjectures, one protist was driven to devour another. Sometimes this cannibalistic meal was incompletely digested, and the nuclei of prey and predator fused. By joining forces, the fused cells were better able to survive adversity, and because they survived...
...influence of sex extends far beyond the realm of physical traits. For instance, the inescapable fact that women have eggs and men sperm has spurred the development of separate and often conflicting reproductive strategies. University of Michigan psychologist David Buss has found that men and women react very differently to questions about infidelity. Men tend to be far more upset by a lover's sexual infidelity than do women: just imagining their partner in bed with another man sends their heart rate soaring by almost five beats a minute. Says Buss: "That's the equivalent of drinking three cups...
...necessarily a great philosopher because his thought was merely a reflection of conditions around him, colored by his own personality. Others, however, strongly support Hume's greatness on the ground that the force of his personality definitely affected the age in which came first, the chicken or the egg. In any case, there is much to be said on both sides...
...motion. Scientists are also examining the swimming skill of an individual sperm. "One day," imagines Michael Berns, director of the Beckman Laser Institute and Medical Clinic at the University of California at Irvine, "we may be able to pick up a live sperm and stuff it right into an egg...
...ended up compromising on unsaturated fat vegetable oil, non-dairy sour cream and no-sugar apple sauce. We served fruit salad, made cookies with yummy egg-substitutes and played driedel with unsalted peanuts as the reward...