Species Modification Quotes

I think we're going to move from a Homo sapiens into a Homo evolutis:... a hominid that takes direct and deliberate control over the evolution of his species, her species and other species.

When biological technology becomes further advanced, human beings as we know them, will become a modified species. If we as human beings fail to include the possibility of this development in our overall, social evolution we will witness the decline of our species

Throughout the kingdom of life, plant as well as animal, the overproduction of individuals and their reduction by death to a fractional part of the original number is one of the basic conditions of progress, if Darwinism is a sound explanation of organic evolution. For this death will be in the nature of things selective, and hence will make for the modification of the species toward a condition of better adaptation to conditions of life. Indeed, the upholders of war have used precisely the argument of war's high mortality as a proof of war's real beneficence to the race.

Although much remains obscure, and will long remain obscure, ... I am convinced that Natural Selection has been the main but not exclusive means of modification.

If you can modify a cell, it's only a short step to modifying a mouse, and if you can modify a mouse, it's only a step to modifying a higher animal, even man.

I think it inevitably follows, that as new species in the course of time are formed through natural selection, others will become rarer and rarer, and finally extinct. The forms which stand in closest competition with those undergoing modification and improvement will naturally suffer most.

I stand by my assertions that although you can know what happens to any individual species that you modify, you cannot be certain what will happen to the ecosystem. Also, we have a strange situation where we have malnourished fat people. It's not that we need more food. It's that we need to manage our food system better.

Seeing this gradation and diversity of structure in one small, intimately related group of birds, one might really fancy that from an original paucity of birds in this archipelago, one species had been taken and modified for different ends.

Natural selection acts solely by accumulating slight successive favorable variations, it can produce no great or sudden modification; it can act only by very short steps.

... on these expanded membranes [butterfly wings] Nature writes, as on a tablet, the story of the modifications of species, so truly do all changes of the organisation register themselves thereon. Moreover, the same colour-patterns of the wings generally show, with great regularity, the degrees of blood-relationship of the species. As the laws of nature must be the same for all beings, the conclusions furnished by this group of insects must be applicable to the whole world.

I not only think that we will tamper with Mother Nature, I think Mother wants us to.

At last gleams of light have come, and I am almost convinced (quite contrary to opinion I started with) that species are not (it is like confessing a murder) immutable. Heaven forfend me from Lamarck nonsense of a 'tendency to progression', 'adaptations from the slow willing of animals', &c! But the conclusions I am led to are not widely different from his; though the means of change are wholly so. I think I have found out (here's presumption!) the simple way by which species become exquisitely adapted to various ends.

Since the beginning of civilization humans have altered our environment and its biology to allow our civilization to thrive - from domesticating plants and animals to building shelter and tools from living organisms.

We are breeding creatures incapable of surviving in any place other than the most artificial settings. We have focused the awesome power of modern genetic knowledge to bring into being animals that suffer more.

The lower animals, on the other hand, must have their bodily structure modified in order to survive under greatly changed conditions. They must be rendered stronger, or acquire more effective teeth or claws, in order to defend themselves from new enemies; or they must be reduced in size so as to escape detection and danger. When they migrate into a colder climate they must become clothed with thicker fur, or have their constitutions altered. If they fail to be thus modified, they will cease to exist.