Various types of artificial ant nests (formicaries) are described. These include simple laboratory types to more complex formicaries whose esthetic design is suitable for flat interiors. Formicaries facilitate not only the observation of natural ant behaviour inside a nest, but also of the remarkable practices used by young queens to appropriate the nest of a host ant species. In such equipment it is even possible to arrange a predatory raid by slave-making ants and observe their behaviour inside the attacked nest. Such observations would not have been possible in natural conditions. and Pavel Amcha.
This study seeks an answer to the question when and how the Czech romantic K. H. Mácha (1810–1836) started to be seen as a “modern” poet who could inspire authors writing decades after his death. The study proves that the image of “modern” Mácha as the first Czech poet to achieve the autonomy of art already existed between 1860 and 1890, and that Mácha’s artistic reputation grew constantly throughout the second half of the 19th century. This argument is based on a vast amount of evidence, mostly taken from literary journalism and criticism between 1858 and 1910 (the latter year seeing the centenary of Mácha’s birth).
Ještěrky dokážou v nouzi odhodit svůj ocas a ten jim naroste. Axolotl mexický je schopen regenerovat celé orgány. Přeborníky jsou však ploštěnci - nejen že libovolné části jejich těl dorůstají, ale z odděleného kousku jejich organismu dokáže vyrůst celý nový jedinec. Takové regegnerační schopnosti lidský organismus nemá. Věda a medicína ale umí nahradit, či dokonce vylepšit stále více a více... and VIktor Černoch, Gabriela Adamková.