I have found this matter for the first time that each animal or plant that has a stronger blood/ fluid circulatory system could have a larger bulk. Todays insects can never grow to the size of larger animals because they lack the pipes and pumping system necessary to counteract the influence of gravity. In my theory embraces the important relationship between structure, gravity and function. The size of an organism is contingent upon the type of its circulatory system. One can think of this as a scale beginning with the smallest animals and ending with the largest. The smallest of animals lack a circulatory system; the slightly larger ones have an open circulatory system. Increasing in size, organisms such as crustaceans (crabs) and some bivalve mollusks (clams) have semi-open circulatory system which comprise some veins and arteries, without capillaries. This followed by still larger animals that have a closed circulatory system. Within the group that has a closed circulatory system are found different types of hearts. mammals are the largest animals because they have the most developed circulatory system with 4-chambered heart.

Beside academic studies I was interested to the Evolution of animals/plants and the effect of gravity of Earth on them. From 1990 started to write papers in this field and nine until of them have been published in Journal. In the year 2000 and 2001 I published two books "Increase of Earth gravity and animals Evolution" and "The ABC of Evolution".

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