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equineluvr ago

Bingo.

The Red Queen hypothesis, also referred to as Red Queen's, Red Queen's race or the Red Queen effect, is 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 ever-evolving opposing organisms in an ever-changing environment. The hypothesis intends to explain two different phenomena: the constant extinction rates as observed in the paleontological record caused by co-evolution between competing species,[1] and the advantage of sexual reproduction (as opposed to asexual reproduction) at the level of individuals.[2]

Leigh Van Valen proposed the hypothesis to explain the "Law of Extinction",[1] showing that, in many populations, the probability of extinction does not depend on the lifetime of the population, instead being constant over millions of years for a given population. This could be explained by the coevolution of species. At other times, established species have evolved cooperatively by assuming adaptive coevolutionary dependencies. These complementary relationships develop through graduated symbiosis, directing punctuated advantages specialized enough to ensure a greater survivability and fitness rate for both species, coupled.[3] Indeed, however, an adaptation in a population of one species (e.g. predators, parasites) may change the natural selection pressure on a population of another species (e.g. prey, hosts), giving rise to common antagonistic coevolutions. If this positive feedback occurs reciprocally, a potential dynamic coevolution may result.[4] The Red Queen at the genus level: The linear relationship between survival times and the logarithm of the number of genera suggests that the probability of extinction is constant over time. Redrawn from Leigh Van Valen (1973).

In another idea, the Red Queen hypothesis is used independently by Hartung[5] and Bell to explain the evolution of sex,[2] by John Jaenike to explain the maintenance of sex[6] and W. D. Hamilton to explain the role of sex in response to

More at link

https://en.wikipedia.org/wiki/Red_Queen_hypothesis