Best 455 quotes in «biology quotes» category

Among all the occurrences possible in the universe the a priori probability of any particular one of them verges upon zero. Yet the universe exists; particular events must take place in it, the probability of which (before the event) was infinitesimal. At the present time we have no legitimate grounds for either asserting or denying that life got off to but a single start on earth, and that, as a consequence, before it appeared its chances of occurring were next to nil. ... Destiny is written concurrently with the event, not prior to it... The universe was not pregnant with life nor the biosphere with man. Our number came up in the Monte Carlo game. Is it surprising that, like the person who has just made a million at the casino, we should feel strange and a little unreal?

Among the Founders, Thomas Jefferson wrote about race at greatest length. He thought blacks were mentally inferior to whites and biologically distinct: “[They] secrete less by the kidnies [sic], and more by the glands of the skin, which gives them a strong and disagreeable odor.” He hoped slavery would be abolished, but he did not want free blacks to remain in America: “When freed, [the Negro] is to be removed from beyond the reach of mixture.” Jefferson was one of the first and most influential advocates of “colonization,” or returning blacks to Africa. He also believed in the destiny of whites as a racially distinct people. In 1786 he wrote, “Our Confederacy [the United States] must be viewed as the nest from which all America, North and South, is to be peopled.” In 1801 he looked forward to the day “when our rapid multiplication will expand itself . . . over the whole northern, if not the southern continent, with a people speaking the same language, governed in similar forms, and by similar laws; nor can we contemplate with satisfaction either blot or mixture on that surface.

A multitude of harlequin lifeforms bobbed and twirled and played in the depths of the Atlantic. Pink cucumbers with thorny backs. Algae. Starfish. Annelids with simple brains and a hundred toes. Sponges—like yellow, swollen hands—sucked in water and pushed out oxygen. Most amusing were the mysterious buggers who had no likeness on the previous earth; tiny beasts with exotic exoskeletons engraved with deep grid-like patterns, snails with horns, and slithering plants that looked like magenta weeping willows.

And then red, marbled with pink, around two imperfect circles of bone-white with dark centers. A space where there shouldn’t be one—ground visible, covered with grass, and some clover. Red again—an image of the tomatoes on the kitchen counter flashed across Beatrice’s mind—surrounding two more bone-white circles. The hand bearing the peacock was severed, that was why Beatrice could see a sliver of ground where basic biology dictated there should be skin. There was a clean cut five inches or so above the wrist, just missing the edge of the peacock’s tail, the muscles and tendons—the bones—neatly sliced through like a Swiss round steak prepared by an expert butcher.

An evolutionary perspective of our place in the history of the earth reminds us that Homo sapiens sapiens has occupied the planet for the tiniest fraction of that planet's four and a half thousand million years of existence. In many ways we are a biological accident, the product of countless propitious circumstances. As we peer back through the fossil record, through layer upon layer of long-extinct species, many of which thrived far longer than the human species is ever likely to do, we are reminded of our mortality as a species. There is no law that declares the human animal to be different, as seen in this broad biological perspective, from any other animal. There is no law that declares the human species to be immortal.

Angelo," he said, and felt the bed rock as Angelo shuddered, caught halfway between REM atonia - the inhibition of movement caused by the shutdown of monoamines in the brain - and waking.

An example of such emergent phenomena is the origin of life from non-living chemical compounds in the oldest, lifeless oceans of the earth. Here, aided by the radiation energy received from the sun, countless chemical materials were synthesized and accumulated in such a way that they constituted, as it were, a primeval “soup.” In this primeval soup, by infinite variations of lifeless growth and decay of substances during some billions of years, the way of life was ultimately reached, with its metabolism characterized by selective assimilation and dissimilation as end stations of a sluiced and canalized flow of free chemical energy.

Ants have a powerful caste system. A colony typically contains ants that carry out radically different roles and have markedly different body structures and behaviors. These roles, Reinberg learned, are often determined not by genes but by signals from the physical and social environment. 'Sibling ants, in their larval stage, become segregated into the different types based on environmental signals,' he said. 'Their genomes are nearly identical, but the way the genes are used—turned on or off, and kept on or off—must determine what an ant "becomes." It seemed like a perfect system to study epigenetics. And so Shelley and I caught a flight to Arizona to see Jürgen Liebig, the ant biologist, in his lab.' The collaboration between Reinberg, Berger, and Liebig has been explosively successful—the sort of scientific story ('two epigeneticists walk into a bar and meet an entomologist') that works its way into a legend. Carpenter ants, one of the species studied by the team, have elaborate social structures, with queens (bullet-size, fertile, winged), majors (bean-size soldiers who guard the colony but rarely leave it), and minors (nimble, grain-size, perpetually moving foragers). In a recent, revelatory study, researchers in Berger’s lab injected a single dose of a histone-altering chemical into the brains of major ants. Remarkably, their identities changed; caste was recast. The major ants wandered away from the colony and began to forage for food. The guards turned into scouts. Yet the caste switch could occur only if the chemical was injected during a vulnerable period in the ants’ development. [...] The impact of the histone-altering experiment sank in as I left Reinberg’s lab and dodged into the subway. [...] All of an ant’s possible selves are inscribed in its genome. Epigenetic signals conceal some of these selves and reveal others, coiling some, uncoiling others. The ant chooses a life between its genes and its epigenes—inhabiting one self among its incipient selves.

An itinerant selfish gene/ Said 'bodies a- plenty I've seen./ You think you're so clever/ But I'll live for ever./ You're just a survival machine.

A recognized fact which goes back to the earliest times is that every living organism is not the sum of a multitude of unitary processes, but is, by virtue of interrelationships and of higher and lower levels of control, an unbroken unity. When research, in the efforts of bringing understanding, as a rule examines isolated processes and studies them, these must of necessity be removed from their context. In general, viewed biologically, this experimental separation involves a sacrifice. In fact, quantitative findings of any material and energy changes preserve their full context only through their being seen and understood as parts of a natural order.

Being biologically successful is more than producing the next generation, it is also providing a safe environment that promotes their good health.

As relates to life on Earth, the fine structure constant determines how solar radiation is absorbed in our atmosphere, and it also applies to how photosynthesis works in plants.

A tissue is evidently an enduring thing. It's functional and structural conditions become modified from moment to moment. Time is really the fourth dimension of living organisms. It enters as part into the constitution of a tissue. Cell colonies, or organs, are events which progressively unfold themselves. They must be studied like history.

At the atomic level, matter does not even exist with certainty; it only exists as a tendency to exist.

Before the girl and the boy tie the knot, they feel like falling in love. And most of them do. Cupid works. Biology demands. And, sociology warrants.

Before you can ask 'Is Darwinian theory correct or not?', You have to ask the preliminary question 'Is it clear enough so that it could be correct?'. That's a very different question. One of my prevailing doctrines about Darwinian theory is 'Man, that thing is just a mess. It's like looking into a room full of smoke.' Nothing in the theory is precisely, clearly, carefully defined or delineated. It lacks all of the rigor one expects from mathematical physics, and mathematical physics lacks all the rigor one expects from mathematics. So we're talking about a gradual descent down the level of intelligibility until we reach evolutionary biology.

Being loved is not a biological need.

Being someone is not a biological need.

Benjamin Franklin wrote little about race, but had a sense of racial loyalty. “[T]he Number of purely white People in the World is proportionably [sic] very small,” he observed. “ . . . I could wish their Numbers were increased.” James Madison, like Jefferson, believed the only solution to the problem of racial friction was to free the slaves and send them away. He proposed that the federal government sell off public lands in order to raise the money to buy the entire slave population and transport it overseas. He favored a Constitutional amendment to establish a colonization society to be run by the President. After two terms in office, Madison served as chief executive of the American Colonization Society, to which he devoted much time and energy. At the inaugural meeting of the society in 1816, Henry Clay described its purpose: to “rid our country of a useless and pernicious, if not dangerous portion of the population.” The following prominent Americans were not merely members but served as officers of the society: Andrew Jackson, Daniel Webster, Stephen Douglas, William Seward, Francis Scott Key, Winfield Scott, and two Chief Justices of the Supreme Court, John Marshall and Roger Taney. All opposed the presence of blacks in the United States and thought expatriation was the only long-term solution. James Monroe was such an ardent champion of colonization that the capital of Liberia is named Monrovia in gratitude for his efforts. As for Roger Taney, as chief justice he wrote in the Dred Scott decision of 1857 what may be the harshest federal government pronouncement on blacks ever written: Negroes were “beings of an inferior order, and altogether unfit to associate with the White race, either in social or political relations; and so far inferior that they have no rights which a White man is bound to respect.” Abraham Lincoln considered blacks to be—in his words—“a troublesome presence” in the United States. During the Lincoln-Douglas debates he expressed himself unambiguously: “I am not nor ever have been in favor of making voters or jurors of negroes, nor of qualifying them to hold office, nor to intermarry with white people; and I will say in addition to this that there is a physical difference between the white and black races which I believe will for ever forbid the two races living together on terms of social and political equality.” His opponent, Stephen Douglas, was even more outspoken, and made his position clear in the very first debate: “For one, I am opposed to negro citizenship in any form. I believe that this government was made on the white basis. I believe it was made by white men for the benefit of white men and their posterity forever, and I am in favor of confining the citizenship to white men—men of European birth and European descent, instead of conferring it upon negroes and Indians, and other inferior races.

Biology is not destiny; you can be the child of an evil person and be a good person

Biomasses are a biological reality that cannot be denied as existing, but even though they exist physically, yet they have not attained the height of Homo sapiens. Humans could be termed as biomasses when they don’t fully put into use their human qualifications. Men and women that don’t bother to think. Men and women that don’t bother to notice things that are out of order. People who are indifferent about the happenings around them. Men and women that don’t respond with solution to the challenges of the era. All of these people are united by one common name BIOMASSES.

Biological determinism is a blight on science. It implies that the way things are is the way they must be. [...] This position is wrong, both empirically and morally.

Biological science clearly states that it is impossible to make the summit of Mauna Kea safe for the sea level adapted workers. As such, the Mauna Kea Observatories should be demolished as soon as possible to protect the health and safety of the unsuspecting workers.

Biology is run by intricate cellular mechanisms. Cellular mechanisms are run by Nature. Thus, the more we attempt to understand Nature, the more we get closer to our existential properties.

Biology is only the best hint as to what was functional in the past but not necessarily about what will be in the future. The most empowering question we can ask about the future is not “What is the future and how do we adapt?” but “How do we want our future to be and how do we adapt?

Biology, list history, is not built with 'if's.

Biology without selfishness, is nothing but fiction.

Birth after birth the line unchanging runs, And fathers live transmitted in their sons; Each passing year beholds the unvarying kinds, The same their manners, and the same their minds:Till, as erelong successive buds decay, And insect-shoals successive pass away, Increasing wants the pregnant parent vex With the fond wish to form a softer sex. ..

As long as museums and universities send out expeditions to bring to light new forms of living and extinct animals and new data illustrating the interrelations of organisms and their environments, as long as anatomists desire a broad comparative basis human for anatomy, as long as even a few students feel a strong curiosity to learn about the course of evolution and relationships of animals, the old problems of taxonomy, phylogeny and evolution will gradually reassert themselves even in competition with brilliant and highly fruitful laboratory studies in cytology, genetics and physiological chemistry.

As the physicist Paul Davies puts it, 'If everything needs everything else, how did the communities of molecules ever arise in the first place?' It is rather as if all the ingredients in your kitchen somehow got together and baked themselves into a cake - but a cake that could moreover divide when necessary to produce more cakes. It is little wonder that we call it the miracle of life. It is also little wonder that we have barely begun to understand it.

...because the great beauty of embryo development, the bit that human beings find so hard to grasp, is that it is a totally decentralised process...no cell need wait for instructions from authority; every cell can act on its own information and the signals it receives from its neighbours. We do not organise societies that way...Perhaps we should try.

Biochemists assume that the three cellular kingdoms evolved from a single common ancestor, because the alternative of supposing an independent origin of life two or more times presents still greater difficulties. The common ancestor is merely hypothetical, as are the numerous transitional intermediate forms that would have to connect such enormously different groups to the ancestor. From a Darwinist viewpoint all these hypothetical creatures are a logical necessity, but there is no empirical confirmation that they existed.

Biologically speaking, you are the child of Mother Nature, and neurologically speaking, you are the heirs of immortal bliss.

Biological science is clear that the Mauna Kea Observatories must be shut down to protect the long term health of the summit workers. It will be interesting to see how long astronomers willfully ignore the science.

Biologists will teach us that the survival of the species depends on cooperation, not competition.

Black magic, the magic of the primeval chaos, blots out or transmogrifies the true form of things. At the stroke of twelve the princess must flee the banquet or risk discovery in the rags of a kitchen wench; coach reverts to pumpkin. Instability lies at the heart of the world. With uncanny foresight folklore has long toyed symbolically with what the nineteenth century was to proclaim a reality - namely, that form is an illusion of the time dimension, that the magic flight of the pursued hero or heroine through frogskin and wolf coat has been, and will continue to be, the flight of all men.

But I am not those people. I am just the biologist; I don’t require any of this to have a deeper meaning.

Death is like a Black Hole. Physics is silent in a grave.

Carson was persuaded that many experts either failed to recognize or chose to ignore the potential hazards of pesticides. She was convinced that the weight of her scientific evidence would defeat the skeptics among them. And once the public had the necessary information, citizens could make informed decisions about what Carson believed was a matter of life and death.

Chloroplasts bear chlorophyll; they give the green world its color, and they carry out the business of photosynthesis. Around the inside perimeter of each gigantic cell trailed a continuous loop of these bright green dots. They spun . . . they pulsed, pressed, and thronged . . . they shone, they swarmed in ever-shifting files around and around the edge of the cell; they wandered, they charged, they milled, raced . . . they flowed and trooped greenly . . . All the green in the planted world consists of these whole, rounded chloroplasts . . . If you analyze a molecule of chlorophyll itself, what you get is one hundred thirty-six atoms of hydrogen, carbon, oxygen, and nitrogen arranged in an exact and complex relationship around a central ring. At the ring’s center is a single atom of magnesium. Now: If you remove the atom of magnesium and in its place put an atom of iron, you get a molecule of hemoglobin. The iron atom combines with all the other atoms to make red blood, the streaming red dots in the goldfish’s tail.

Corporate governments have set the biological environmental exposure limits far too high regarding all forms of radiation exposures.

Darwin abolished special creations, contributed the Origin of Species and hitched all life together in one unbroken procession.

... despite the profound advances in molecular biology oer the past half-century, we still do not understand what life is, how it relates to the inanimate world, and how it emerged.

Cats catch mice, small birds and the like, very well. Teleology tells us that they do so because they were expressly constructed for so doing—that they are perfect mousing apparatuses, so perfect and so delicately adjusted that no one of their organs could be altered, without the change involving the alteration of all the rest. Darwinism affirms on the contrary, that there was no express construction concerned in the matter; but that among the multitudinous variations of the Feline stock, many of which died out from want of power to resist opposing influences, some, the cats, were better fitted to catch mice than others, whence they throve and persisted, in proportion to the advantage over their fellows thus offered to them. Far from imagining that cats exist 'in order' to catch mice well, Darwinism supposes that cats exist 'because' they catch mice well—mousing being not the end, but the condition, of their existence. And if the cat type has long persisted as we know it, the interpretation of the fact upon Darwinian principles would be, not that the cats have remained invariable, but that such varieties as have incessantly occurred have been, on the whole, less fitted to get on in the world than the existing stock.

Consciousness is the chronic pain of life, and all higher organisms suffer it every waking moment.

Dams also tend to be built in remote areas which are the last refuge for species that have been displaced by development in other regions.

Death is like a Black Hole. Biology is silent in a grave.

Do not get mad, get science.

Dolphins and sharks are natural enemies. Dolphins are like, "Quit eating us," and sharks are like, "Stop smiling all the time, you morons.

Evolution is more about adaptivity than adaptability.