Filtrer
Sciences humaines & sociales
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What are Species? In its most general acceptation the word "species" signifies a kind or sort of something, which something is the genus to which the species belongs. Thus, a black stone is a species of the genus stone; a gray horse is a species of the genus horse; a scalene triangle is a species of the genus triangle; and, generally, it may be said that every adjective denotes a species of the genus indicated by the substantive to which it is applied. In the technology of the physical sciences the term "species" has a more restricted signification. It is used to denote a group of individuals which corresponds with an early stage of that process of abstraction by which the qualities of individual objects are arranged in the subordinated categories of classification. The individual object alone exists in Nature; but, when individual objects are compared, it is found that many agree in all those characters which, for the particular purpose of the classifier, are regarded as important, while they differ only in those which are unimportant; and those which thus agree constitute a species, the definition of which is a statement of the common characters of the individuals which compose the species...
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A History of Brazil
Collection, Nature And Human Studies
- Human and Literature Publishing
- 31 Mars 2022
- 9782384690121
This book deals with a history of Brazil.
The largest republic of South America, and the third largest of the western hemisphere, Brazil, which from a variety of circumstances, has ever been regarded an interesting country, is now become doubly so, from being the present residence of the court of Portugal; and as such, we are induced to give a description of it, which, from the nature and size of this work, must necessarily be a short one. Cabral, in the year 1500, first landed on the coast of Brazil, and immediately gave notice to the court of Lisbon of the discovery he had made. The Portugueze, however, were for a length of time very indifferent to the acquisition of so fine a country. This negligence may in a great degree be attributed to the want of civilized inhabitants, and opulent towns, which the Portugueze had been accustomed to meet with in Africa and Asia; whilst the natives of Brazil consisted of different colonies of savages, dwelling in miserable huts, situated either in forests, on the banks of rivers, or on the sea-coast; and subsisting entirely on the produce of the chace, or on fish caught by themselves. The heat of the climate made cloathing not only unnecessary, but absolutely superfluous. The men and women equally painted their bodies, ornamented their necks and arms with necklaces and bracelets of white bones, and adorned their heads with feathers. The Brazilians are nearly of the same stature as the Europeans, but in general not so robust. Their principal arms consisted of clubs and arrows; their wars were not frequent, but cruel; and dreadful was the fate of those prisoners who fell into their hands without being wounded, since they constantly served as a repast to their merciless conquerors... -
Intelligence of Elephants
Collection, Nature And Human Studies
- Human and Literature Publishing
- 25 Avril 2022
- 9782384690596
This book deals with the intelligence of the elephants, their emotions and memory.
The higher mental faculties of the elephant are more advanced in their development than in any other animal, except the dog and monkey...
"The elephant is the largest living land animal. Though numerous forms existed in early geological times, it is represented today by two species only: the African elephant, and the Asiatic elephant.
The African elephant differs from its Asiatic cousin in several particulars. The apparent distinguishing features are the tusks that attain a much greater development and occur in both sexes, while in the Asiatic species the males alone possess them. The African elephant is at least a foot higher than the Asiatic, attaining a maximum height of eleven feet. Its ears are extremely large, covering the shoulder, and in some instances measuring three and a half feet in length by two and a half feet in width, while those of its Indian relative are comparatively small."...