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Jaina Biology
until halted by a barrier of some kind - physical, such as, an ocean, a river, a desert, a mountain and environmental, such as, an unfavourable climate or biologic, such as, absence of food or presence of enemy organizations which prey upon it or compete with it for food or shelter."55
The question why certain animals and plants are present in one region but are excluded from another in which they are well adapted to survive (and in which they flourish whep introduced by man) can be explained only by their evolutionary history.
55. Ibid, p. 549. The Sūtrakrtänga 11. 3 (knowledge of food ) suggests that there
is a biologic barrier for plants and animals to survive because of absence of food or presence of enemy organizations which prey upon a species or compete with it for food or shelter.
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