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Updated: May 9, 2025
But as Providence bestows upon fishes the instrument of fins, whereby they balance and direct their movements, however rapid and erratic, through the pathless deeps, so to the cold-blooded creatures of our own species that may be classed under the genus Money-Makers the same protective power accords the fin-like properties of prudence and caution, wherewith your true money-getter buoys and guides himself majestically through the great seas of speculation.
We can also understand the apparent paradox, that the very same characters are analogical when one class or order is compared with another, but give true affinities when the members of the same class or order are compared one with another: thus the shape of the body and fin-like limbs are only analogical when whales are compared with fishes, being adaptations in both classes for swimming through the water; but the shape of the body and fin-like limbs serve as characters exhibiting true affinity between the several members of the whale family; for these cetaceans agree in so many characters, great and small, that we cannot doubt that they have inherited their general shape of body and structure of limbs from a common ancestor.
The resemblance in the shape of the body and in the fin-like anterior limbs between dugongs and whales, and between these two orders of mammals and fishes, are analogical. These latter resemblances may be accounted for, as it seems to me, by adaptation for similarly active movements through thickets and herbage, together with concealment from enemies.
These latter have been grouped in the four quadrants, a much more effective arrangement than the cylindrical layer of the schematic worm. Furthermore, the animal has on each segment a pair of fin-like projections, stiffened with bristles, the parapodia. These are moved by special muscles and form effective organs of creeping.
It lived for some time out of water, and even when put into spirits, it swam in an extraordinary manner, falling head over heels every time, which motion it accomplished by swimming on its back and making rapid strokes with the fin-like legs with which it is provided behind. We also caught today several little crabs and barnacles.
Quick as lightning my eyes were directed towards the sufferer. The water, as it bounded from his crown, spread into a glassy sheet, that completely concealed his head, but the huge, fin-like, projecting ears told me who was the victim. It was Scipio! Again his cry of agony pealed upon my ears, deep and prolonged, as though it issued from the innermost recesses of his soul!
The annelid had two anterior segments differing from those of the rest of the body; these may, perhaps, be considered as the foreshadowings of a structure not yet realized; they can only by courtesy be called a head. Thirdly, the insect has legs. The annelid had fin-like parapodia, approaching the legs of insects about as closely as the fins of a fish approach the legs of a mammal.
The creature of which we were in search is amphibious, and suckles its young like the whale. It is frequently found in pairs with its young, browsing on the marine plants, and sometimes on shore in the cocoanut groves. It is properly called the "manatee," or seacow; measures fifteen feet in length, has two fin-like arms, is covered with hair, and often weighs twelve hundred pounds.
'As a matter of fact, your mother was very proud of her Dutch blood. But there, she flung out little fin-like sleeves, 'if you don't let me keep to my story I shall go back as uneasy as I came. And you didn't, she added even more fretfully, 'you didn't tell me the time. Lawford stared at his watch again for some few moments without replying. 'It's a few minutes to ten, he said at last.
We can also understand the apparent paradox, that the very same characters are analogical when one class or order is compared with another, but give true affinities when the members of the same class or order are compared one with another: thus the shape of the body and fin-like limbs are only analogical when whales are compared with fishes, being adaptations in both classes for swimming through the water; but the shape of the body and fin-like limbs serve as characters exhibiting true affinity between the several members of the whale family; for these cetaceans agree in so many characters, great and small, that we cannot doubt that they have inherited their general shape of body and structure of limbs from a common ancestor.
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