WebJun 13, 2024 · For human evolution does not have to wait a 20-year generation for a genetic variation to change a trait the way that biological evolution must. One more example, this time of a mathematical model that is explanatory over a restricted domain, but whose explanatory power is destroyed by an arms race breaking up a local equilibrium. WebThis chapter reviews the literature on causes of arms races, their consequences, and when a state should build up arms and engage in an arms race if necessary. The literature tends to equate external causes with threats; the chapter argues for a broader understanding that includes all causes of rational arming behavior. Internal causes of …
Coevolutionary arms races: Is victory possible? PNAS
In evolutionary biology, an evolutionary arms race is an ongoing struggle between competing sets of co-evolving genes, phenotypic and behavioral traits that develop escalating adaptations and counter-adaptations against each other, resembling an arms race. These are often described as examples of positive … See more Arms races may be classified as either symmetrical or asymmetrical. In a symmetrical arms race, selection pressure acts on participants in the same direction. An example of this is trees growing taller as a result of … See more When a species has not been subject to an arms race previously, it may be at a severe disadvantage and face extinction well before it could … See more • Anti-predator adaptation • Parasite–host interactions • Parent–offspring conflict See more Selective pressure between two species can include host-parasite coevolution. This antagonistic relationship leads to the necessity for the pathogen to have the best virulent alleles … See more The Phytophthora infestans/Bintje potato interaction The Bintje potato is derived from a cross between Munstersen and Fransen potato varieties. It was created in the Netherlands in the early 20th century and now is mainly cultivated in the … See more • Nature's Eternal Arms Race (PBS Documentary) See more WebHence, it is called an arms race. This sort of evolutionary arms race is probably relatively common for many plant/herbivore systems. Other predator/prey systems have also engaged in arms races. For example, many molluscs, such as Murex snails, have evolved thick shells and spines to avoid being eaten by animals such as crabs and fish. These ... how many times was helmut huber married
The arms race - Understanding Evolution
WebJun 2, 2024 · The examples of dual-use biological research just mentioned, as well as a comprehensive recent U.S. National Academies of Sciences study of the issue, ... The arms race metaphor should be used with caution because, unlike the Cold War arms race, the primary driver for the biological arms race is the ongoing advance of biological … WebSep 21, 1979 · The arms race concept may help to reduce the mystery of why cuckoo hosts are so good at detecting cuckoo eggs, but so bad at detecting cuckoo nestlings. The evolutionary contest between queen and worker ants over relative parental investment is a good example of an intraspecific asymmetric arms race. how many times was hawking married