| [1] | For examples and illustrations I used the first volume of Romanes’ “Darwin and After Darwin” as more convenient and compact than Darwin himself. |
FIFTH MEETING
Henry said: “I told some one lately about our club and what we did, and he thought we spoke of things that were too deep and philosophical.”
“Do you think so?” I asked.
“No,” he answered, “of course I don’t.”
I said: “We are doing something unusual for boys and girls of your age. Most people would think you not able to understand and enjoy it. But I know you do, and you know it.”
Marian said: “Why should we not be able to talk of these things in a club, when we certainly do talk of them among ourselves?”
I read Henry’s paper:
“To-day we spoke on the theory of evolution. The theory tells us that we are descended from a single, one-celled animal. This animal grew and was divided into several cells, which in turn were divided. We find that when a race of animals needs something with which to protect itself, or with which to get food, that thing usually grows, as in the case of the mother bird, whose feathers are usually the color of the place where she has her nest. In this manner the one-celled animals may have developed, as the increasing numbers made it harder to get food, and brought other difficulties. Another way in which species may develop is that of isolation. For example, while a flock of birds is flying south to escape the cold, some of the weaker ones are left on the way. Here the cold may cause many feathers to grow, and the other conditions may have such an effect as to develop an entirely new kind of bird. We can also take as an example the different colors of men, caused by the conditions in which they live.
“The disappearance of certain species while others survive is, according to the idea of natural selection, only the survival of the fittest. We find that long ago there were animals larger than any of to-day, but they have completely died out, perhaps because they could not find food, while the smaller, weaker animals have survived because they were better fitted for the conditions. Looking back at history, we can see how at different periods one nation would wipe out another which was weaker, or how one people, more advanced than others, could better protect itself from the elements, and, therefore, lived while others died. The similarity of different animals gives a good foundation for this theory. A baby will often take attitudes exactly like those of a monkey, and while it is young crawl on all fours like animals. Different kinds of animals have bones and all other parts of the body just alike, and also like those of men.