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Memes about the concept “Reproduction”

1–20 of 30

Rigidness is a Symptom of Death

As Lao-tzu put it two thousand years ago: Man at his birth is supple and tender, but in death he is rigid and hard. Plants when young are sinuous and moist, but when old are brittle and dry. Thus suppleness and tenderness are signs of life, While rigidity and hardness are signs of death.

The Orchid and the Wasp

How could movements of deterritorialization and processes of reterri-torialization not be relative, always connected, caught up in one another? The orchid deterritorializes by forming an image, a tracing of a wasp; but the wasp reterritorializes on that image. The wasp is nevertheless deterritorialized, becoming a…

The Symbionts

As the epochs passed, the two species molded one another to form a well-integrated union. The little arachnoid, no bigger than a chimpanzee, rode in a snug hollow behind the great "fish's" skull, his back being stream-lined with the contours of the larger creature. The tentacles of the ichthyoid were specialized for…

The Race Where Children are Fathered by the Tribe

The key to the understanding of this race is, I believe, its strange method of reproduction, which was essentially communal. Every individual was capable of budding a new individual; but only at certain seasons, and only after stimulation by a kind of pollen emanating from the whole tribe and carried on the air. The…

The Propagation of "Brute Men"

Many thousands of other quasi-human worlds, besides those of the "Echinoderm" type, came to an untimely end. One, which succumbed to a curious disaster, perhaps deserves brief notice. Here we found a race of very human kind. When its civilization had reached a stage and character much like our own, a stage in which…

Human Biology and Monarchy

Luard calls the first of his ages, which ran from 1400 to 1559, the Age of Dynasties. In this epoch, royal “houses,” or extended coalitions based on kinship, vied for control of European turfs. A little biology shows why the idea of basing leadership on inheritance is a recipe for endless wars of succession. Rulers…

With the Seed We May Deduce the Animal

If we possessed a thorough knowledge of all the parts of the seed of any animal (e.g. man), we could from that alone, by reasons entirely mathematical and certain, deduce the whole conformation and figure of each of its members, and, conversely if we knew several peculiarities of this conformation, we would from those…

IDIC - Infinite Diversity in Infinite Combinations

IDIC basically states that we should delight in the differences amongst people, not hate people because they are different. It seems that the human race has found a large number of ways to hate (different sex, color, religion, nationality, political party, social class, etc) and has emphasized hate over co-operation…

Why Marriage is Not Like Prostitution

What's more, most males could not possibly afford to buy a woman's reproductive potential if courtship were a simple economic exchange. What would be an appropriate market price for a nine-month pregnancy, the pain of childbirth, the exhaustion of breast-feeding, and twenty years of maternal care? At least half a…

Hamilton's Model

Hamilton's rule is rb - c > 0. Here c is the cost to the giver's fitness (c fewer offspring because of helping), and b is the benefit to the recipient's fitness (offspring gained by the recipient from the help). Here again, "r" is a measure of the relatedness between giver and the receiver [...] Hamilton’s rule says…

Life Before Science

As recorded in the stone carvings of Egypt and Mesopotamia, the history of worid society begins with humanity at large knowing nothing of physics. chemistry, or biology. Humans recognized but few safe edibles. Humans had witnessed many lethal poisonings by superficially attractive items plucked from the mysterious…

When Does Human Life Begin

Careful and reproducible observations and measurements in the bbiosciences have similarly forced us to repeatedly refine our traditional ideas about what life itself is and when it begins. Is a human being first a life when it emerges from the birth canal? Does it have any legal rights is as a person before then? Or…

Ontogeny and Phylogeny

The History of Evolution of Organisms consists of two kindred and closely connected parts: Ontogeny, which is the history of the evolution of individual organisms, and Phylogeny, which is the history of the evolution of organic tribes. Ontogency is a brief and rapid recapitulation of Phylogeny, dependent on the…

Life Can Go On for Billions of Years

I believe that life can go on forever. It takes a million years to evolve a new species, ten million for a new genus, one hundred million for a class, a billion for a phylum—and that's usually as far as your imagination goes. In a billion years, it seems, intelligent life might be as different from humans as humans…

Barriers that Keep Different Species from Interbreeding

What keeps members of two related species from mating with each other? There are many different reproductive barriers. Species might not interbreed simply because their mating or flowering seasons don’t overlap. Some corals, for example, reproduce only one night a year, spewing out masses of eggs and sperm into the…

Mating Strategies of Males and Females

A vivid demonstration of this difference can be seen by looking up the record number of children sired by a human female versus a male. If you were to guess the maximum number of children that a woman could produce in a lifetime, you’d probably say around fifteen. Guess again. The Guinness Book of World Records gives…

Postmating Competition

Sexual selection doesn’t end with the sex act itself: males can continue to compete even after mating. In many species, females mate with more than one male over a short period of time. After a male inseminates a female, how can he prevent other males from fertilizing her and stealing his paternity? This postmating…