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Whatmust follow the fish? After marine animals amphibiansreptiles are all more likely to survive dangerresettlement, as because they are tenacious of the higher animals, and becausethey are less these last would be pulled out of water. Suchreptiles, which live indifferently in salt and in fresh waters, asfor example, alligators, and those which are carried away on a floatingthe trees of the river mouths into the sea, as Orinokia alligators, about whichsays Humboldt, will, in all probability, these earlysettlers. It is also obvious that among the first vertebrates inhabitinga new continent, there will be other reptiles. If we take into considerationwhat must inevitably happen on these natural rafts of trees,earth and vegetable substances, which sometimes are carried away by large rivers likeMississippi, with all its varied cargo of living creatures in the sea, wewe will see that whereas warm-blooded animals with a higher organization soondie of hunger or other suffering animals are cold-blooded and sluggishlong can stay without food, will live perhapsa few weeks; outside of accidents that may appear to be sometimesduring long periods, reptiles will be the first to arrive whole andsound on distant shores as what we saw examples innow. The relocation of mammals, as paired with largerisk must be in order of probability delayed for a longer time; Yesand it is unlikely it can take place before due to the increase in newcontinent the distance of its shores from neighboring countries has not decreased inlarge extent or until the formation of the intermediate Islands is not deliveredorganisms most able to survive the dangers of the way. But supposeall the necessary conditions for immigration are already there; whatmammals are the first to arrive on the new continent and will remain there alive?Of course, not large herbivores, because they immediately drown,if due to some accidents fall into the sea; not carnivorous,because they would find such food, what they need, even assuming,they would have carried the way. A small four-legged, climb trees andeating insects are just more likely to be carried out withtheir domestic shores and find new the food that requires thembody. Only natural to expect that insectivorous mammals,growth similar to those which we find in the Triassic strata, and instonefields shales will be the first settlers between higher vertebratesanimals. Finally, if we assume that the convenience of the message even moreincreased because of the further intermediate omelene seathe formation of new Islands, or as a result of the perfect Union that newthe mainland with the old connections, due to the continuing increases insoil - we will finally find that new and better animalssurge in the newly formed continent.
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