Positive disasters

By Jozef Klembara Over the course of the last 550 million years or so, the evolution of the Earth has, with all its organismal worlds, been at certain intervals interrupted by drastic events called mass extinctions. The event that occurred between the Palaeozoic and Mesozoic eras of the Earth’s history (about 245 million years ago) is…

“Unity of organization” revealed

By Jozef Klembara It was Richard Owen, a famous English anatomist, a founder of the Natural History Museum in London and contemporary of Darwin, who presented a discovery of the common structural plan of all organisms, the so-called archetype, representing a structural “unity” (unity of organization) of all organisms: “The ideal original or fundamental pattern on…

Limbs – welcome!

By Jozef Klembara The interrelationships among individual elements of nature have attracted the attention of scientists for a very long time. From this point of view, the study of the periods of the Earth which had caused an extinction or at least created very difficult conditions for life is very important.  The fossil record shows that…