How to solve obesity in humans. 1. Introduce a predator that hunts humans (wikipedia - island gigantism) Since small size usually makes it easier for herbivores to escape or hide from predators, the decreased predation pressure on islands can allow them to grow larger.[a] Small herbivores may also benefit from the absence of competition from missing types of large herbivores. Thus, island gigantism is usually an evolutionary trend resulting from the removal of constraints on the size of small animals related to predation and/or competition. Such constraints can operate differently depending on the size of the animal, however; for example, while small herbivores may escape predation by hiding, large herbivores may deter predators by intimidation. As a result, the complementary phenomenon of island dwarfism can also result from the removal of constraints related to predation and/or competition on the size of large herbivores.[3] In contrast, insular dwarfism among predators more commonly results from the imposition of constraints associated with the limited prey resources available on islands.[3] As opposed to island dwarfism, island gigantism is found in most major vertebrate groups and in invertebrates.
Posted on: Thu, 17 Apr 2014 06:14:49 +0000
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