Quotes About Diversity

It has already been stated that various parts in the same individual, which are exactly alike during an early embryonic period, become widely different and serve for widely different purposes in the adult state. So again it has been shown that generally the embryos of the most distinct species belonging to the same class are closely similar, but become, when fully developed, widely dissimilar.

Who can explain why one species ranges widely and is very numerous, and why another allied species has a narrow range and is rare? Yet these relations are of the highest importance, for they determine the present welfare, and, as I believe, the future success and modification of every inhabitant of this world.

puede llegar a deducir que las especies no han sido creadas independientemente, sino que han descendido como variedades de otras especies.

like varieties, from other species. Nevertheless, such a conclusion, even if well founded, would be unsatisfactory, until it could be shown how the innumerable species inhabiting this world have been modified, so as to acquire that perfection of structure and coadaptation which most justly excites our admiration. Naturalists continually refer to external conditions, such as climate, food, etc., as the only possible cause of variation. In one very

unusual degree. This family became divided eight generations

We here see in two distant countries a similar relation between plants and insects of the same families, though the species of both are different. When man is the agent in introducing into a country a new species this relation is often broken:

it is so important to bear in mind the probability of conversion from one function to another

It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, and dependent on each other in so complex a manner, have all been produced by laws acting around us.

Enfin, tous les naturalistes pourraient citer des cas innombrables d'espèces restant absolument les mêmes, c'est-à-dire qui ne varient en aucune façon, bien qu'elles vivent sous les climats les plus divers. Ces considérations me poussent à attribuer très peu de poids à l'action directe des conditions de vie.

If the country were open on its borders, new forms would certainly immigrate, and this also would seriously disturb the relations of some of the former inhabitants.

When on board H.M.S. 'Beagle,' as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America

Podemos creer que la selección natural llegue a producir, por una parte, un órgano de insignificante importancia, como la cola de la jirafa, que sirve de espantamoscas, y por otra parte, un órgano tan maravilloso como el ojo?

I have kept every breed which I could purchase or obtain, and have been most kindly favoured with skins from several quarters of the world, more especially by the Hon. W. Elliot from India, and by the Hon. C. Murray from Persia.

Great as the differences are between the breeds of pigeons, I am fully convinced that the common opinion of naturalists is correct, namely, that all have descended from the rock-pigeon (Columba livia), including under this term several geographical races or sub-species, which differ from each other in the most trifling respects.

belirtilen çeÅŸitli engeller ve belki daha bilinmeyen baÅŸkalar?, toplumun tasas?z, bozuk ve baÅŸka bak?mlardan aÅŸa?? üyelerinin iyi insanlardan daha h?zl? çoÄŸalmas?n? önlemezse, dünya tarihinde pek s?k görüldüÄŸü gibi, ulus geriler.

The natural history of this archipelago is very remarkable; it seems to be a little world within itself.

We mark some days as fair, some as foul, because we do not see that the character of every day as identical

had that to understand each other by, though otherwise they could not have been more alien to each other. In short

It does your mind good to talk to people different from you.

An imaginary planet has a role like a clown in a Shakespeare play. Every so often an audience needs a breather, a fresh view. Other planets provide that. But every time I write about another planet it is deliberately so unrealistic that people can't really believe it. In a way it makes our own planet more important, more real."66

Pues si los cambios que experimentan los animales inferiores son tan maravillosos y difíciles de descubrir, ¿por qué no habría de haber cambios igual de maravillosos o más, e igualmente difíciles de descubrir, en los seres superiores? ¿No

Gone were the days when Americans were forced to pick one of three nightly news broadcasts. Now there are so many outlets that we suddenly have the ability to find the source of news that makes us the least uncomfortable.

Any idea, no matter how bizarre, can seem mainstream if you're able to find a handful of others who will believe along with you.

There are two types of people in this world," Pete volunteers helpfully, "those who think there are only two types of people in the world, and everybody else.