All organs of an animal form a single system, the parts of which hang together, and act and re-act upon one another; and no modifications can appear in one part without bringing about corresponding modifications in all the rest.

Georges Cuvier

Categorized in : Animal Together Form

Moreover, it thus follows that not a great deal of time was needed for the large animals of the three major parts of the world to become known to the people who spent time on the coasts of those regions.

three animal people

The traces of upheavals become more impressive when one moves a little higher, when one gets even closer to the foot of the great mountain ranges. There are still plenty of shell layers. We notice them, even thicker and more solid ones.

mountain-ranges feet moving

If they [enlightened men] take any interest in examining, in the infancy of our species, the almost obliterated traces of so many nations that have become extinct, they will doubtless take a similar interest in collecting, amidst the darkness which covers the infancy of the globe, the traces of those revolutions which took place anterior to the existence of all nations.

darkness men science

[Audubon's works are] the most splendid monuments which art has e... by Georges Cuvier

[Audubon's works are] the most splendid monuments which art has erected in honor of ornithology.

ornithology honor art

But the revolutions and changes which are responsible for the present state of the earth are not limited to the upsetting of the ancient strata and to the ebbing of the sea after the formations of new layers.

upset earth sea

Nurse, it was I who discovered that leeches have red blood.[]On his deathbed when the nurse came to apply leeches

discovery science blood

The older the layers, the more each of them is uniform over a great extent; the newer the layers, the more they are limited and subject to variation within small distances.

uniform more small great