Quotes About Biology

If you attend a meeting of evolutionary biologists somewhere in America, you might be lucky and spot a tall, gray-whiskered, smiling man bearing a striking resemblance to Abraham Lincoln, standing rather diffidently at the back of the crowd. He will probably be surrounded by a knot of admirers, hanging on his every word—for he is a man of few words. A whisper will go around the room: "George is here." You will sense from people's reactions the presence of greatness.

Bizler, miras ald???m?z hücre intihar? mekanizmas?na mahkumuz.

An evolutionary bargain seems to have been struck: in exchange for sexual exclusivity, the man brings meat and protects the fire from thieves and bullies; in exchange for help rearing the children, the woman brings veg and does much of the cooking. This may explain why human beings are the only great apes with long pair bonds.

At the cost of some extra work, women get to eat some good protein without having to chase it; men get to know where the next meal is coming from if they fail to kill a deer.

in the matter of choosing mates, males are usually after quantity and females after quality.

Sex, according to the Red Queen theory, has nothing to do with adapting to the inanimate world—becoming bigger or better camouflaged or more tolerant of cold or better at flying—but is all about combating the enemy that fights back.

Evolutionary tortoises nonetheless do more genetic mixing than evolutionary hares. Austin Burt's discovery of a correlation between generation length and amount of recombination is evidence of the Red Queen at work. The longer your generation time, the more genetic mixing you need to combat your parasites.

It is a remarkable fact that people who have been preparing for an important exam, and have shown the symptoms of stress, are more likely to catch colds and other infections, because one of the effects of Cortisol is to reduce the I50 GENOME activity, number and lifetime of lymphocytes – white blood cells.

Sexual relations are driven not by what is good, in evolutionary terms, for men or for women, but for their chromosomes. The ability to seduce a woman was good for Y chromosomes in the past; the ability to resist seduction by a man was good for X chromosomes in the past.

Male gorillas monopolise their mates, so their sperm meets no competitors; male chimpanzees share their mates, so each needs to produce large quantities of sperm and mate frequently to increase his chances of being the father. It also explains why male birds sing so hard when already 'married'. They are looking for 'affairs'.

The sex that invests most in rearing the young—by carrying a fetus for nine months in its belly, for example—is the sex that makes the least profit from an extra mating. The sex that invests the least has time to spare to seek other mates. Therefore, broadly speaking, males invest less and seek quantity of mates, while females invest more and seek quality of mates.

Grant, then, that men prefer women with relatively wide hips and large breasts. That still does not explain the gaining of fat on breasts and hips; fat breasts do not produce more milk than lean ones of the same size, and fat hips are no further apart than lean ones of the same bone structure. Low thinks women who gained fat in those places may have deceived men into thinking they had milk-full breasts and wide hip-bones. Men fell for it

Man with all his noble qualities still bears in his bodily frame the indelible stamp of his lowly origin.

Women are affected by lunar tides only once a month; men have raging hormones every day.

It has been found that so called tomboy behavior in girls correlated closely with higher levels of testosterone. On the other side, low testosterone levels in males result in unassertive and 'feminine' behavior, whereas the highest levels of testosterone to which men are exposed during adolescence result in extra aggressiveness.

Both the capabilities and evolutionary strategies of men and women, capabilities and strategies that were of course interconnected and mutually reinforcing, made men much more predisposed to fighting than women.

If there is a lesson here it has to do with humility. For all our vaunted intelligence and complexity, we are not the sole authors of our destinies or of anything else. You may exercise diligently, eat a medically fashionable diet, and still die of a sting from an irritated bee. You may be a slim, toned paragon of wellness, and still a macrophage within your body may decide to throw in its lot with an incipient tumor.

mostly I saw her efforts to induct me into adulthood much as a calf might see its mother's explanations of veal: I was being recruited into the great death march of biology—be born, reproduce, die.

As a recent editorial in the Journal of Clinical Oncology put it: What we must first remember is that the immune system is designed to detect foreign invaders, and avoid out own cells. With few exceptions, the immune system does not appear to recognize cancers within an individual as foreign, because they are actually part of the self.

Lo primero que hay que tener en cuenta es que nuestro sistema inmunológico está diseñado para detectar invasiones externas y pasar por alto a nuestras propias células. Con unas pocas excepciones, el sistema inmunológico no parece reconocer los cánceres que desarrolla el individuo como intrusos, porque de hecho son parte de él mismo."17

In my experience, any class or assembly restricted to girls was going to be in some way degrading, like the one where we'd been convened to receive the information that from now on our bodies would be producing poisons that would need to be discharged on a monthly basis, through an unspecified orifice. The restriction of the typing requirement to girls suggested some sort of connection between our festering genitals and the need to serve in a clerical-type occupation, perhaps as a punishment.

Of the two hundred bones in the human body, more than a quarter are in the foot. It is a more complicated instrument than an automobile transmission, and it is treated with far less consideration.

Engineered genes don't play by the rules that have organized life for three billion years (or, if you prefer, 4,004). And in this case, winning means loser takes all.

Iano ordered her back to Ivins to finish her degree in biology. Willa wondered when he would notice Tig was immune to his directives. Tig informed her parents she refused to take out bank loans, with tuition exchange no longer an option, and anyway she'd already learned more than she wanted to know about a ravaged biosphere. The latter was no news to Willa, who'd seen how the girl always took the truth of human selfishness harder than any of her friends, even the history majors.