Quotes About Biology

Some species are so disdainful of brains that they treat them as an expendable luxury. There are species of sea slugs that have mini-brains when they are young. They use them as they voyage through the seas looking for a perch from which they can sieve food. But once they've found their perch they no longer need such an expensive piece of equipment, so they eat their brains. Some have joked, cruelly, that this is a bit like tenured academics.

His parents' pregnancies must have been all-out chromosomatic war

The skulls of blacks, for instance, are denser, heavier, and smoother than the skulls of whites; that's one key reason there have been so few outstanding black Olympic swimmers: they have to work harder just to stay afloat. In

Just look at what happens to humans after they die-most of that is done by microbes.

Give me something about bacteria. Give me something that won't make me feel so inferior

I am a tarsier and a tarsier's son, the grandson and great-grandson of tarsiers, a tiny creature, made up of two pupils and whatever simply could not be left out

La amenaza ovni Convendría recordar igualmente que cuando hablamos de ¨vida¨ en otros planetas, nos referimos casi siempre a los aminoácidos, que nunca son muy sociables, no si quiera en las fiestas.

Dr. Neil Roach, of George Washington University, lead author of a 2013 study that tackles the mystery of why, out of all other primates on the planet, we're the only ones who can kill prey with a lethal throw.

Darwin's great gift to science was simplifying all life to pure mathematics: your one and only goal on earth is multiplication. Everything you do, every instinct you have, is an evolutionary urge to make babies and leave behind as many copies of yourself as possible. From that perspective, heroism makes no sense. Why risk the grave for someone else if there's no guarantee of a biological payoff? Dying for your own kids: smart. Dying for a rival's? Genetic suicide.

aun cuando nuestro cerebro representa solo el 2 por ciento de nuestra masa corporal, demanda el 20 por ciento de nuestro consumo de energía, frente al 9 por ciento que gasta el de los chimpancés.

Wilson called those forces the biophilia hypothesis, which literally means "love of living things" but translates more closely to "Your brain may not remember, but your body will never forget that animals have guarded us since the Stone Age." Why

even though our brains account for only 2 percent of our body weight, they demand 20 percent of our energy,

But humans, with our millions of sweat glands, are the best air-cooled engine that evolution has ever put on the market.

Humans really are obligatorily required to do aerobic exercise in order to stay healthy, and I think that has deep roots in our evolutionary history," Dr. Lieberman said. "If there's any magic bullet to make human beings healthy, it's to run.

You know what kind of nerves are in your feet? The same ones that network into your genitals.

Healing is a biological process, not an art. It is as much a function of the living organism as respiration, digestion, circulation, excretion, cell proliferation, or nerve activity. It is a ceaseless process, as constant as the turning of the earth on its axis. Man can neither duplicate nor imitate nor provide a substitute for the process. All schools of healing are frauds.

The human body is the only machine for which there are no spare parts.

This was it. Kiyomi realized it now. This was what her heart had reacted to. Her heart thrilled to mitochondria. But why?

Toshiaki learned that all living organisms were governed by their DNA. He was impressed by perfection of this system.Why did existence have the ability to design such a beautiful code? And how could such a simple structure account for endless diversity of life forms?

Dondequiera que haya vida, sea en plantas o animales, existen siempre las enzimas. Las enzimas forman parte de todas las actividades necesarias para mantener la vida,

Physically, a man is a man for a much longer time than a woman is a woman.

There is really no such creature as a single individual; he has no more life of his own than a cast-off cell marooned from the surface of your skin.

Survival, in the cool economics of biology, means simply the persistence of one's own genes in the generations to follow.

All of today's DNA, strung through all the cells of the earth, is simply an extension and elaboration of [the] first molecule.