Red Queen hypothesis

Etymology
An allusion to a remark by the in 's : "Now, here, you see, it takes all the running you can do, to keep in the same place." The hypothesis was advanced in 1973 by American biologist, who called it the Red Queen's hypothesis.

Proper noun

 * 1)  An evolutionary hypothesis which proposes that organisms must constantly adapt, evolve, and proliferate not merely to gain reproductive advantage, but also simply to survive while pitted against other evolving organisms in an ever-changing environment.

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