To solve the problem, a fuzzy clustering based on predator prey PSO algorithm is presented, which is using density function to initialize cluster centre.

为解决此问题，提出一种基于捕食-被捕食的粒子群优化模糊聚类算法且聚类中心采用密度函数初始化。

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Biologists speculate that the mostly likely cause was a shift in Pacific Ocean currents, but food availability, changing river conditions and predator-prey relationships could be affecting the fish.

生物学家推测，最有可能的成因是太平洋洋流的变化，不过食物的取得、河流环境的改变、生物掠夺关系等，也都可能对鲑鱼造成影响。

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This deceptively minimalist predator-prey game triggers some remarkably intense feelings.

这个极其简单的虚拟捕食--被捕食游戏引发了一些显著而强烈的情绪。

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"If you understand the distribution of these structures in the skin of a prey animal, you can understand something about predator-prey interactions, and it might explain some of the hadrosaur fossils we see with these bite marks, " he said.

BBC: Dinosaur mummy yields its secrets

There was a lion that briefly went missing and what one executive generally describes as predator versus prey issues.

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Fothergill and Linfield used state-of-the-art camera technology to capture nature's predator-prey interplay from great distances without disrupting the hunt.

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